:root{
  --navy:#1b2838;--navy-2:#24364d;--blue:#2f5fe0;--blue-d:#1f3fa8;--orange:#e8762b;--orange-d:#c55a16;
  --ink:#1b2838;--muted:#5b6677;--line:#e2e8f0;--bg:#fff;--bg-alt:#f4f7fb;--ok:#1a9b5b;
  --r:12px;--shadow:0 6px 24px rgba(16,32,64,.08);
  --font:"Nunito Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);font-size:17px;line-height:1.6}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
a:hover{color:var(--blue-d)}
h1,h2,h3{line-height:1.2;margin:0 0 .6em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.8rem,4vw,2.7rem)}
h2{font-size:clamp(1.45rem,3vw,2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.narrow{max-width:820px}
.center{text-align:center}
.muted{color:var(--muted)}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;z-index:99;background:#fff;padding:8px 12px}

/* top + header */
.topbar{background:var(--navy);color:#dfe6f0;font-size:.85rem;text-align:center;padding:8px 0}
.topbar a{color:#fff;text-decoration:none}
.header{background:#fff;box-shadow:0 2px 12px rgba(16,32,64,.06);position:sticky;top:0;z-index:50}
.header-in{display:flex;align-items:center;gap:24px;min-height:72px}
.logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--blue-d)}
.logo svg{width:40px;height:40px}
.logo span{display:flex;flex-direction:column;line-height:1}
.logo b{font-size:1.45rem;font-weight:800;letter-spacing:.02em}
.logo i{font-style:normal;color:var(--orange);font-weight:800;letter-spacing:.35em;font-size:.8rem;margin-top:2px}
.nav{margin-left:auto}
.nav>ul{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav a{display:block;padding:10px 12px;color:var(--ink);text-decoration:none;font-weight:600;font-size:.98rem;border-radius:8px}
.nav a:hover,.nav a[aria-current]{color:var(--blue)}
.has-sub{position:relative}
.sub{display:none;position:absolute;top:100%;left:0;background:#fff;box-shadow:var(--shadow);border-radius:10px;list-style:none;margin:0;padding:8px;min-width:250px}
.has-sub:hover .sub,.has-sub:focus-within .sub{display:block}
.caret{font-size:.75em}
.burger{display:none;margin-left:auto;background:none;border:0;padding:10px;cursor:pointer}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0}

/* buttons */
.btn{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-weight:700;padding:12px 22px;border-radius:10px;border:2px solid var(--blue);cursor:pointer;font:inherit;font-weight:700;text-align:center;transition:.15s}
.btn:hover{background:var(--blue-d);border-color:var(--blue-d);color:#fff}
.btn-lg{padding:15px 28px;font-size:1.05rem}
.btn-sm{padding:8px 14px;font-size:.92rem}
.btn-block{display:block;width:100%}
.btn-ghost{background:transparent;color:var(--blue);}
.btn-ghost:hover{background:var(--blue);color:#fff}
.btn-outline{background:#fff;color:var(--blue)}
.btn-light{background:#fff;color:var(--navy);border-color:#fff}
.btn-light:hover{background:#eef2f8;color:var(--navy);border-color:#eef2f8}
.btn-outline-light{background:transparent;border-color:#fff;color:#fff}
.btn-wa{background:#1fae5b;border-color:#1fae5b}
.header-cta{white-space:nowrap;background:var(--orange);border-color:var(--orange)}
.header-cta:hover{background:var(--orange-d);border-color:var(--orange-d)}

/* hero */
.hero{background:linear-gradient(135deg,#f4f7fb 0%,#e7eefb 100%);padding:56px 0 64px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero-product .hero-grid{grid-template-columns:.9fr 1.1fr}
.eyebrow{text-transform:uppercase;letter-spacing:.14em;color:var(--blue);font-weight:700;font-size:.85rem}
.lede{font-size:1.15rem;color:var(--muted)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
.hero-trust{display:flex;flex-wrap:wrap;gap:8px 22px;list-style:none;padding:0;margin:0;color:var(--muted);font-weight:600;font-size:.95rem}
.hero-trust li::before{content:"✓ ";color:var(--ok);font-weight:800}
.hero-art{background:#fff;border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.page-head{background:linear-gradient(135deg,#f4f7fb,#e7eefb);padding:40px 0 36px;border-bottom:1px solid var(--line)}

/* sections */
.section{padding:60px 0}
.section.alt{background:var(--bg-alt)}
.section-lede{color:var(--muted);max-width:760px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.alt .box{background:#fff}
.prose h2{margin-top:1.6em}
.prose h2:first-child{margin-top:0}

/* product cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:28px 0}
.card{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.card-pop{border:2px solid var(--orange)}
.card h3 a{color:var(--ink);text-decoration:none}
.card .muted{font-size:.95rem;flex:1}
.card-img{display:block;background:var(--bg-alt);border-radius:10px;padding:14px;margin-bottom:14px}
.badge{position:absolute;top:-12px;left:16px;background:var(--orange);color:#fff;font-weight:800;font-size:.78rem;padding:4px 10px;border-radius:20px;text-transform:uppercase;letter-spacing:.06em}
.badge-inline{position:static;display:inline-block;margin-bottom:10px}
.specs{list-style:none;padding:0;margin:0 0 12px;font-size:.92rem}
.specs li{display:flex;justify-content:space-between;gap:10px;padding:6px 0;border-bottom:1px dashed var(--line)}
.specs span{color:var(--muted)}
.specs-lg{font-size:1rem;max-width:460px}
.price{font-weight:800;color:var(--orange-d);font-size:1.25rem;margin:6px 0 14px}
.price-lg{font-size:1.8rem}
.mini-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mini{display:flex;flex-direction:column;gap:2px;border:1px solid var(--line);border-radius:12px;padding:16px;text-decoration:none;color:var(--ink);background:#fff}
.mini:hover{border-color:var(--blue)}
.mini span{color:var(--muted);font-size:.92rem}
.mini .price{margin:6px 0 0;font-size:1.05rem;color:var(--orange-d)}

/* lists */
.checks{list-style:none;padding:0;margin:0 0 1em}
.checks li{position:relative;padding:6px 0 6px 30px}
.checks li::before{content:"";position:absolute;left:0;top:11px;width:18px;height:18px;border-radius:50%;background:var(--ok) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5 8.5 14 15 7' stroke='%23fff' stroke-width='2.4' fill='none'/%3E%3C/svg%3E") center/14px no-repeat}
.cols2{columns:2;column-gap:28px}
.cols2 li{break-inside:avoid}
.steps{list-style:none;counter-reset:s;padding:0;margin:24px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:6px}
.steps li::before{content:counter(s);width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;display:grid;place-items:center;margin-bottom:6px}
.steps span{color:var(--muted);font-size:.95rem}
.pills{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:16px 0 0}
.pills a{display:block;padding:10px 16px;border:1px solid var(--line);border-radius:30px;text-decoration:none;font-weight:600;background:#fff}
.pills a:hover{border-color:var(--blue)}

/* tables */
.table-wrap{overflow-x:auto;margin:16px 0}
.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.table th,.table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.table thead th{background:var(--navy);color:#fff;font-size:.92rem}
.table tbody th{font-weight:700}
.price-cell{font-weight:800;color:var(--orange-d);white-space:nowrap}
.note{font-size:.92rem;color:var(--muted)}
.note.warn{background:#fff7ec;border-left:4px solid var(--orange);padding:14px 16px;border-radius:8px;color:var(--ink)}
.diagram{margin:0 0 20px}

/* faq */
.faq details{border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:#fff}
.faq summary{cursor:pointer;padding:16px 48px 16px 18px;font-weight:700;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:12px;font-size:1.5rem;color:var(--blue)}
.faq details[open] summary::after{content:"–"}
.faq details>div{padding:0 18px 6px;color:var(--muted)}

/* lead form */
.lead{background:var(--navy);color:#e7edf5}
.lead h2{color:#fff}
.lead a{color:#9fc0ff}
.lead .checks li::before{background-color:var(--orange)}
.lead-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.lead-phone{font-size:1.15rem}
.lead-phone a{color:#fff;font-weight:800}
.form{background:#fff;color:var(--ink);border-radius:16px;padding:26px;display:grid;gap:14px;box-shadow:0 10px 40px rgba(0,0,0,.25)}
.form label{display:grid;gap:4px;font-weight:600;font-size:.95rem}
.form input,.form select{font:inherit;padding:12px 14px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;width:100%}
.form input:focus,.form select:focus{outline:2px solid var(--blue);border-color:var(--blue)}
.form .consent{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:.88rem;color:var(--muted)}
.form .consent input{width:auto;margin-top:4px}
.form .consent a{color:var(--blue)}
.hp{position:absolute;left:-9999px}

/* cta band */
.cta-band{background:linear-gradient(90deg,var(--blue-d),var(--blue));color:#fff;padding:34px 0}
.cta-in{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.cta-in p{margin:0;font-size:1.3rem;font-weight:800}
.cta-in div{display:flex;gap:10px;flex-wrap:wrap}

/* crumbs */
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:12px 16px;margin:0 auto;font-size:.88rem;color:var(--muted)}
.crumbs{padding:0}
.crumbs li+li::before{content:"›";margin-right:6px}
.crumbs a{color:var(--muted)}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.big{font-size:1.3rem;font-weight:800}

/* footer */
.footer{background:var(--navy);color:#c5d0de;padding:50px 0 20px;font-size:.95rem}
.footer a{color:#e7edf5;text-decoration:none}
.footer a:hover{text-decoration:underline}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{padding:3px 0}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px}
.f-title{color:#fff;font-weight:800;margin-bottom:10px}
.footer-legal{border-top:1px solid var(--navy-2);margin-top:30px;padding-top:18px;font-size:.82rem;color:#93a1b5}

/* floating call button (ca pe domusinstal.ro) */
.fab{position:fixed;right:22px;bottom:22px;width:62px;height:62px;border-radius:50%;background:var(--orange);display:grid;place-items:center;box-shadow:0 8px 24px rgba(232,118,43,.45);z-index:60}
.fab svg{width:28px;height:28px}
.sticky-cta{display:none}

/* responsive */
@media (max-width:1080px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .nav a{padding:10px 8px;font-size:.92rem}
}
@media (max-width:900px){
  .burger{display:block}
  .header-cta{display:none}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:var(--shadow);padding:10px 16px 18px}
  .nav.open{display:block}
  .nav>ul{flex-direction:column}
  .sub{display:block;position:static;box-shadow:none;padding:0 0 0 14px;min-width:0}
  .hero-grid,.hero-product .hero-grid,.split,.lead-grid,.footer-grid,.contact-grid{grid-template-columns:1fr}
  .hero-product .hero-art{order:2}
  .mini-cards{grid-template-columns:1fr}
  .cols2{columns:1}
  .topbar{font-size:.78rem}
}
@media (max-width:620px){
  body{font-size:16px;padding-bottom:70px}
  .cards,.steps{grid-template-columns:1fr}
  .section{padding:44px 0}
  .hero{padding:36px 0 44px}
  .fab{display:none}
  .sticky-cta{display:grid;grid-template-columns:1fr 1fr;gap:8px;position:fixed;left:0;right:0;bottom:0;padding:8px;background:#fff;box-shadow:0 -4px 16px rgba(0,0,0,.1);z-index:60}
  .sticky-cta .btn{padding:12px}
  .hero-cta .btn{flex:1}
}
.hero-grid>*,.split>*,.lead-grid>*,.cards>*,.footer-grid>*{min-width:0}