:root{
  --navy:#0d2236;
  --navy-dark:#081826;
  --blue:#2ba6dd;
  --blue-light:#4db8e8;
  --steel:#1e3a52;
  --ink:#1c2b38;
  --grey:#5a6b78;
  --bg:#ffffff;
  --soft:#f4f7f9;
  --line:#e3e9ee;
  --display:'Poppins',sans-serif;
  --body:'Inter',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);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--display);line-height:1.15;color:var(--navy)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.7rem;border-radius:4px;font-family:var(--display);font-weight:600;font-size:.9rem;cursor:pointer;border:none;transition:.25s;letter-spacing:.02em}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--blue);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--navy);border:1px solid var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--navy);transform:translateY(-2px)}

/* ---------- TOP BAR ---------- */
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;justify-content:center;gap:2.5rem;padding:.5rem 24px;font-size:.9rem;flex-wrap:wrap}
.topbar a{color:var(--grey);display:flex;align-items:center;gap:.4rem;transition:.2s}
.topbar a:hover{color:var(--blue)}
.topbar .appt{background:var(--navy);color:#fff;padding:.55rem 1.4rem;font-family:var(--display);font-weight:600;font-size:.82rem;letter-spacing:.05em}
.topbar .appt:hover{background:var(--blue);color:#fff}

/* ---------- HEADER ---------- */
header{background:var(--navy);position:sticky;top:0;z-index:100;
  background-image:linear-gradient(rgba(13,34,54,.97),rgba(8,24,38,.98)),url('assets/banners/your-system.jpg');
  background-size:cover;background-position:center}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.5rem 0}
.brand img{height:88px;width:auto}
.nav-links{display:flex;align-items:center;gap:2rem;list-style:none}
.nav-links a{font-family:var(--display);font-weight:500;font-size:1rem;color:#dfe8ef;transition:.2s;position:relative;padding:.3rem 0}
.nav-links a:hover,.nav-links a.active{color:var(--blue-light)}
.nav-links a.active::after{content:"";position:absolute;bottom:-2px;left:0;right:0;height:2px;background:var(--blue)}
.nav-links .sep{color:rgba(255,255,255,.25)}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:.4rem}
.burger span{width:26px;height:2px;background:#fff;transition:.3s}

/* ---------- PAGE TITLE ---------- */
.page-title{text-align:center;padding:2.5rem 0 1rem}
.page-title h1{font-size:clamp(2rem,4vw,2.6rem);font-weight:700}

/* ---------- SECTIONS ---------- */
.section{padding:4.5rem 0}
.section-sm{padding:3rem 0}
.lead-blue{color:var(--navy);font-family:var(--display);font-weight:600}

/* ---------- HERO (home) ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;overflow:hidden;background:var(--navy)}
.hero video,.hero .hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,255,255,.92) 0%,rgba(255,255,255,.75) 42%,rgba(255,255,255,.15) 75%,transparent 100%);z-index:1}
.hero-content{position:relative;z-index:2;max-width:680px}
.hero .welcome{font-family:var(--display);font-weight:600;color:var(--navy);font-size:1.1rem;margin-bottom:.3rem}
.hero .sub{font-family:var(--display);font-weight:600;color:var(--steel);font-size:1.1rem;margin-bottom:1.5rem}
.hero h1{font-size:clamp(2.4rem,5.5vw,4rem);font-weight:700;color:var(--navy);line-height:1.08}

/* ---------- MISSION ---------- */
.mission{display:grid;grid-template-columns:420px 1fr;gap:3rem;align-items:start}
.mission-img{border-radius:6px;overflow:hidden;box-shadow:0 20px 50px -22px rgba(13,34,54,.5)}
.mission h2{font-size:1.7rem;font-weight:700;margin-bottom:1.2rem}
.mission p{color:var(--grey);margin-bottom:1rem}
.mission .cta-row{display:flex;gap:1rem;margin-top:1.5rem;flex-wrap:wrap}

/* estimate form box (home) */
.estimate-box{background:var(--navy);
  background-image:linear-gradient(rgba(13,34,54,.97),rgba(8,24,38,.98)),url('assets/banners/your-system.jpg');
  background-size:cover;color:#fff;padding:2rem;border-radius:6px}
.estimate-box h3{color:#fff;display:flex;align-items:center;gap:.6rem;margin-bottom:1.3rem;font-size:1.2rem}
.field{margin-bottom:1rem}
.field label{display:block;font-size:.85rem;margin-bottom:.35rem;color:#cfe0ec}
.field input,.field textarea{width:100%;padding:.7rem;border:none;border-radius:3px;font-family:var(--body);font-size:.95rem}
.field textarea{min-height:120px;resize:vertical}

/* ---------- SERVICES GRID (home) ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:2.5rem}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden;transition:.3s}
.svc-card:hover{transform:translateY(-5px);box-shadow:0 18px 40px -20px rgba(13,34,54,.4)}
.svc-card img{aspect-ratio:16/11;object-fit:cover;width:100%}
.svc-card .body{padding:1.3rem}
.svc-card h3{font-size:1.15rem;font-weight:600;color:var(--navy)}
.center-head{text-align:center}
.center-head h2{font-size:2rem;font-weight:700}

/* ---------- SERVICES PAGE (rows) ---------- */
.svc-row{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;margin-bottom:4rem}
.svc-row img{border-radius:6px;width:100%;aspect-ratio:4/3;object-fit:cover;box-shadow:0 18px 45px -22px rgba(13,34,54,.45)}
.svc-row h3{font-size:1.5rem;font-weight:700;margin-bottom:.8rem}
.svc-row p{color:var(--grey);margin-bottom:1.3rem}

/* ---------- ABOUT ---------- */
.about-block{max-width:1000px;margin:0 auto}
.about-block h2{font-size:1.6rem;font-weight:700;margin:2rem 0 1rem;color:var(--navy)}
.about-block p{color:var(--grey);margin-bottom:1rem}
.about-cta{background:var(--steel);
  background-image:linear-gradient(rgba(13,34,54,.95),rgba(8,24,38,.97)),url('assets/banners/your-system.jpg');
  background-size:cover;color:#fff;padding:3rem 0;margin-top:3rem}
.about-cta .wrap{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.about-cta h2{color:#fff;font-size:1.8rem;font-weight:600;max-width:600px}
.about-cta .contacts{display:flex;gap:3rem}
.about-cta .contacts .it{text-align:center}
.about-cta .contacts h4{color:#fff;font-size:.95rem;margin-bottom:.3rem}

/* ---------- CONTACT ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.contact-info h2{font-size:1.6rem;font-weight:700;margin-bottom:2rem}
.contact-info .ci{display:flex;align-items:flex-start;gap:1rem;margin-bottom:1.5rem;color:var(--grey)}
.contact-info .ci svg{width:22px;height:22px;fill:var(--blue);flex-shrink:0;margin-top:3px}
.contact-banner img{border-radius:6px;width:100%}
.get-in-touch{text-align:center;margin:3rem 0 1.5rem}
.get-in-touch h3{font-size:1.5rem;letter-spacing:.06em;font-weight:600}
.get-in-touch .dash{width:50px;height:3px;background:var(--blue);margin:1rem auto}
.contact-form{max-width:640px;margin:0 auto}
.contact-form .field label{color:var(--grey)}
.contact-form .field input,.contact-form .field textarea{border:1px solid var(--line);background:#fff}

/* ---------- GALLERY ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.gallery a{display:block;border-radius:4px;overflow:hidden;aspect-ratio:1;background:var(--soft)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:.4s}
.gallery a:hover img{transform:scale(1.08)}

/* ---------- FOOTER ---------- */
footer{background:var(--navy-dark);
  background-image:linear-gradient(rgba(6,18,28,.985),rgba(6,18,28,.99)),url('assets/banners/your-system.jpg');
  background-size:cover;color:#b9c9d6;padding:3.5rem 0 1.5rem;margin-top:0}
.foot-nav{display:flex;gap:1.5rem;margin-bottom:2.5rem;font-family:var(--display);font-size:.95rem}
.foot-nav a{color:#cfe0ec}
.foot-nav a:hover{color:var(--blue)}
.foot-grid{display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:2.5rem;align-items:start}
.foot-logo img{height:120px;margin-bottom:1rem}
.foot-col h4{color:#fff;font-size:.95rem;margin-bottom:.8rem;display:flex;align-items:center;gap:.5rem}
.foot-col svg{width:18px;height:18px;fill:var(--blue)}
.foot-col p,.foot-col a{color:#b9c9d6;font-size:.92rem;margin-bottom:.3rem;display:block}
.foot-col a:hover{color:var(--blue)}
.hours div{display:flex;justify-content:space-between;padding:.25rem 0;font-size:.88rem;border-bottom:1px solid rgba(255,255,255,.08)}
.hours .day{font-weight:600;color:#fff}
.reach{margin-top:1.5rem}
.socials{display:flex;gap:.7rem;margin-top:.7rem}
.socials a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.1);display:grid;place-items:center;transition:.2s}
.socials a:hover{background:var(--blue);transform:translateY(-3px)}
.socials svg{width:18px;height:18px;fill:#fff}
.map-box{border-radius:6px;overflow:hidden;height:240px}
.map-box iframe{width:100%;height:100%;border:0}
.copyright{text-align:center;margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid rgba(255,255,255,.1);font-size:.85rem;color:#7d909e}

@media(max-width:920px){
  .mission,.contact-grid,.svc-row,.foot-grid{grid-template-columns:1fr}
  .svc-grid,.gallery{grid-template-columns:repeat(2,1fr)}
  .svc-row.reverse{direction:ltr}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--navy);flex-direction:column;padding:1.2rem 24px;gap:.8rem}
  .nav-links.open{display:flex}
  .nav-links .sep{display:none}
  .burger{display:flex}
  .about-cta .wrap{flex-direction:column;text-align:center}
  .about-cta .contacts{justify-content:center}
  .topbar .wrap{gap:1rem}
}
@media(max-width:560px){.gallery{grid-template-columns:1fr}}

/* ---------- SUBMENU ---------- */
.has-sub{position:relative}
.submenu{display:none;position:absolute;top:100%;left:0;background:var(--navy);min-width:300px;padding:.5rem 0;box-shadow:0 12px 30px -10px rgba(0,0,0,.5);z-index:50;border-top:2px solid var(--blue)}
.has-sub:hover .submenu{display:block}
.submenu li{display:block!important}
.submenu a{display:block;padding:.6rem 1.2rem;color:#dfe8ef!important;font-size:.92rem}
.submenu a:hover{background:var(--steel);color:var(--blue-light)!important}

/* ---------- HOME: left box + video right ---------- */
.home-3col{display:grid;grid-template-columns:1fr 1.05fr 0.85fr;gap:2.5rem;align-items:stretch}
.home-left{position:relative;border-radius:6px;overflow:hidden;min-height:620px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 18px 45px -22px rgba(13,34,54,.5);background:#0d2236}
.home-left img.bg,.home-left video.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.home-left .ov{position:relative;z-index:1;padding:1.8rem}
.home-left .topwords{color:var(--navy);font-weight:600;font-size:1.05rem;line-height:1.5;text-shadow:0 1px 2px rgba(255,255,255,.5)}
.home-left .midwords{color:var(--ink);font-weight:700;font-size:1.05rem;margin-top:7rem}
.home-left .logo-bottom{position:relative;z-index:1;text-align:center;padding:1.5rem}
.home-left .logo-bottom img{height:60px;margin:0 auto;filter:brightness(0) invert(1)}
.home-mid h2{font-size:1.7rem;font-weight:700;margin-bottom:1rem}
.home-mid p{color:var(--grey);margin-bottom:.9rem;font-size:.97rem}
.home-mid .lead{color:var(--navy);font-size:1.05rem;font-weight:500}
.home-mid .cta-row{display:flex;gap:1rem;margin-top:1.5rem;flex-wrap:wrap}
.home-right{border-radius:6px;overflow:hidden;box-shadow:0 18px 45px -22px rgba(13,34,54,.5);background:#000;aspect-ratio:9/12}
.home-right video{width:100%;height:100%;object-fit:cover;display:block}

/* ---------- SOLAR detail page ---------- */
.solar-body{max-width:1100px;margin:0 auto}
.solar-body h2{font-size:1.7rem;font-weight:700;margin:2rem 0 .5rem;color:var(--navy)}
.solar-body h3{font-size:1.3rem;font-weight:600;margin:1.5rem 0 .5rem;color:var(--navy)}
.solar-body h4{font-size:1.1rem;font-weight:600;margin:1.2rem 0 .3rem;color:var(--navy)}
.solar-body p{color:var(--grey);margin-bottom:1rem}
.solar-split{display:grid;grid-template-columns:1fr 460px;gap:3rem;align-items:start;margin:2rem 0}
.solar-split .vid{border-radius:6px;overflow:hidden;box-shadow:0 18px 45px -22px rgba(13,34,54,.5);background:#0d2236;aspect-ratio:9/16;position:sticky;top:120px}
.solar-split .vid video{width:100%;height:100%;object-fit:contain;background:#0d2236}
.benefit{display:flex;gap:1rem;align-items:flex-start;margin-bottom:1.5rem}
.benefit .chk{flex-shrink:0;width:34px;height:28px;margin-top:4px}
.solar-img{border-radius:6px;overflow:hidden;margin:1rem 0;max-width:453px}

@media(max-width:920px){
  .home-3col{grid-template-columns:1fr}
  .home-right{aspect-ratio:9/12;max-width:400px;margin:0 auto}
  .solar-split{grid-template-columns:1fr}
  .solar-split .vid{position:static;max-width:400px;margin:0 auto}
  .submenu{position:static;min-width:0;box-shadow:none;border-top:none;padding-left:1rem}
  .has-sub:hover .submenu{display:block}
}