/* Sun Infraa — site styles
   Layout idea: a contractor's printed brochure. White pages, navy band like the shop signboard,
   gold used only for actions, plain ruled lists instead of icon cards. */
:root{
  --navy:#0d2744; --navy-2:#173a60; --gold:#f0a30a; --gold-dark:#c98500; --rust:#b23f17;
  --ink:#1b2430; --muted:#5a6573; --line:#dde2e8; --paper:#ffffff; --tint:#f4f5f7;
  --text:'Barlow',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --display:'Barlow Condensed','Arial Narrow',Arial,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--text);font-size:17px;line-height:1.65;color:var(--ink);background:var(--paper)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
svg{display:block}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.container{width:100%;max-width:1180px;margin-inline:auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
section{padding-block:72px}
.tint{background:var(--tint)}
h1,h2,h3,h4{color:var(--navy);line-height:1.2;font-weight:700;text-wrap:balance}
h1{font-size:clamp(2rem,4.2vw,3rem)}
h2{font-size:clamp(1.6rem,2.8vw,2.1rem);margin-bottom:12px}
h3{font-size:1.2rem;font-weight:600;margin-bottom:6px}
p{max-width:68ch}
.lead{font-size:1.08rem;color:var(--muted)}
.muted{color:var(--muted)}
.small{font-size:.9rem}
.mt{margin-top:28px}
.inline-link{color:var(--rust);font-weight:600;border-bottom:1px solid currentColor}
.inline-link:hover{color:var(--navy)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:4px;font:600 1rem/1.2 var(--text);border:2px solid transparent;cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.btn-gold{background:var(--gold);color:#1b1206}
.btn-gold:hover{background:var(--gold-dark)}
.btn-line{border-color:currentColor}
.btn-line:hover{background:#fff;color:var(--navy);border-color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2)}
.btn-sm{padding:8px 14px;font-size:.92rem}
.actions{display:flex;flex-wrap:wrap;gap:12px}

/* Top band (like the signboard's blue strip) */
.band{background:var(--navy);color:#c9d4e2;font-size:.88rem}
.band .container{display:flex;justify-content:space-between;gap:8px 24px;flex-wrap:wrap;padding-block:7px}
.band a:hover{color:#fff}

/* Header */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.logo{display:flex;align-items:center;gap:10px;color:var(--navy)}
.logo .ic{color:var(--gold);flex:none}
.logo b{display:block;font:700 1.85rem/1 var(--display);letter-spacing:.02em}
.logo b span{color:var(--gold-dark)}
.logo small{display:block;font-size:.68rem;letter-spacing:.06em;color:var(--muted);margin-top:3px;text-transform:uppercase}
#navMenu{display:flex;align-items:center;gap:28px;list-style:none;margin-left:auto}
#navMenu > li > a,.dd-btn{font-weight:500;font-size:1rem;padding-block:6px;color:var(--ink);position:relative}
#navMenu > li > a:hover,.dd-btn:hover,#navMenu > li > a.active,.dd-btn.active{color:var(--rust)}
#navMenu > li > a.active::after,.dd-btn.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--rust)}
.nav-call{display:flex;flex-direction:column;line-height:1.2;text-align:right;border-left:1px solid var(--line);padding-left:22px}
.nav-call small{font-size:.75rem;color:var(--muted)}
.nav-call a{font-weight:700;color:var(--navy);font-size:1.05rem}
.nav-call a:hover{color:var(--rust)}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0}

/* Services dropdown */
.dd{position:relative}
.dd-btn{background:none;border:0;font-family:inherit;cursor:pointer;display:flex;align-items:center;gap:6px}
.dd-btn svg{transition:transform .2s}
.dd-btn.active::after{right:20px}
.dd-menu{list-style:none;position:absolute;top:calc(100% + 18px);left:-16px;min-width:270px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--gold);box-shadow:0 14px 30px rgba(13,39,68,.12);padding:6px 0;display:none;z-index:60}
.dd-menu::before{content:"";position:absolute;left:0;right:0;top:-21px;height:21px}
.dd:hover .dd-menu,.dd:focus-within .dd-menu,.dd.open .dd-menu{display:block}
.dd:hover .dd-btn svg,.dd.open .dd-btn svg{transform:rotate(180deg)}
.dd-menu a{display:block;padding:10px 18px}
.dd-menu a:hover,.dd-menu a.active{background:var(--tint)}
.dd-menu b{display:block;font-weight:600;color:var(--navy)}
.dd-menu small{display:block;font-size:.84rem;color:var(--muted)}

/* Photo banners */
.banner{position:relative;color:#fff;background:var(--navy) center/cover no-repeat;padding-block:96px 88px}
.banner::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,28,50,.92) 0%,rgba(9,28,50,.78) 45%,rgba(9,28,50,.35) 100%)}
.banner .container{position:relative}
.banner h1{color:#fff;max-width:760px}
.banner p{color:#dde5ef;font-size:1.1rem;margin-top:14px;max-width:620px}
.banner .actions{margin-top:28px}
.banner-home{padding-block:120px 110px;background-image:url(../img/hero-home.jpg);background-position:center 30%}
.banner-construction{background-image:url(../img/hero-construction.jpg)}
.banner-solar{background-image:url(../img/hero-solar.jpg);background-position:center 35%}
.banner-home-services{background-image:url(../img/hero-home-services.jpg)}
.banner-plain::before{background:none}
.crumbs{font-size:.9rem;color:#b9c6d6;margin-bottom:12px}
.crumbs a:hover{color:#fff}
.addr-line{margin-top:26px;font-size:.95rem;color:#b9c6d6}

/* Two-column intro / split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.split > *{min-width:0}
.split-wide{grid-template-columns:1.3fr 1fr}

/* Service columns (home) */
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.svc-col{display:flex;flex-direction:column;min-width:0}
.svc-col img{aspect-ratio:16/10;object-fit:cover;width:100%;margin-bottom:18px}
.svc-col p{color:var(--muted);margin-bottom:12px}
.svc-col ul{margin:0 0 16px 1.1em;color:var(--ink)}
.svc-col li{margin-bottom:4px}
.svc-col .inline-link{margin-top:auto;align-self:flex-start}

/* Ruled list: name + description rows */
.ruled{list-style:none;border-top:1px solid var(--line)}
.ruled li{display:grid;grid-template-columns:minmax(180px,240px) 1fr;gap:6px 28px;padding:16px 0;border-bottom:1px solid var(--line)}
.ruled li b{color:var(--navy);font-weight:600}
.ruled li span{color:var(--muted)}
.ruled.two{display:grid;grid-template-columns:1fr 1fr;column-gap:48px;border-top:0}
.ruled.two li{grid-template-columns:1fr;gap:2px}
.ruled.two li:nth-child(-n+2){border-top:1px solid var(--line)}

/* Detailed trade blocks */
.trades{display:grid;grid-template-columns:1fr 1fr;gap:0 56px}
.trade{padding:26px 0;border-top:1px solid var(--line);scroll-margin-top:110px}
.trade p{color:var(--muted);margin-bottom:10px}
.trade ul{margin-left:1.1em}
.trade li{margin-bottom:3px}
.trade .btn{margin-top:14px}

/* Simple bullet columns */
.list-cols{columns:2;column-gap:48px;margin-left:1.1em}
.list-cols li{margin-bottom:6px;break-inside:avoid}

/* Tables */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.98rem;min-width:620px}
th,td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--navy);color:#fff;font-weight:600}
tbody tr:hover{background:var(--tint)}
td.num,th.num{font-variant-numeric:tabular-nums;white-space:nowrap}
td b{color:var(--navy)}
td a{color:var(--rust);font-weight:600}

/* Note box */
.note-box{border-left:4px solid var(--gold);background:var(--tint);padding:22px 26px}
.note-box h3{margin-bottom:8px}
.note{font-size:.88rem;color:var(--muted);margin-top:14px}

/* Ordered steps in prose */
.steps{counter-reset:s;list-style:none;display:grid;gap:0}
.steps li{counter-increment:s;display:grid;grid-template-columns:44px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.steps li::before{content:counter(s);font:700 1.5rem/1 var(--display);color:var(--gold-dark);padding-top:2px}
.steps b{color:var(--navy);display:block}
.steps span{color:var(--muted)}

/* FAQ */
.faq{max-width:820px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);padding:16px 32px 16px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:12px;font-size:1.4rem;color:var(--muted)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{color:var(--muted);padding-bottom:16px}

/* Visit / contact block */
.visit{background:var(--navy);color:#c9d4e2}
.visit h2{color:#fff}
.visit .container{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px;align-items:start}
.visit h4{color:#fff;font-size:.95rem;margin-bottom:8px}
.visit a{color:#fff;font-weight:600}
.visit a:hover{color:var(--gold)}
.visit .actions{margin-top:18px}

/* Contact page */
.contact-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:56px;align-items:start}
.details{list-style:none;border-top:1px solid var(--line)}
.details li{display:grid;grid-template-columns:130px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.details li b{color:var(--navy);font-weight:600}
.details a{color:var(--rust);font-weight:600}
form{border:1px solid var(--line);padding:30px;background:#fff}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.frow > div{min-width:0}
label{display:block;font-size:.92rem;font-weight:600;margin-bottom:6px;color:var(--navy)}
input,select,textarea{width:100%;padding:11px 13px;border:1px solid #c9d0d8;border-radius:3px;font:inherit;font-size:1rem;margin-bottom:16px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(13,39,68,.12)}
textarea{resize:vertical;min-height:120px}
form .btn{width:100%}
.form-status{margin-top:14px;font-size:.95rem;color:#15803d}
.form-status a{color:var(--rust);font-weight:600;text-decoration:underline}

/* Footer */
footer{background:#0a1d33;color:#9fb0c4;font-size:.95rem}
.foot{display:grid;grid-template-columns:1.4fr 1fr .8fr 1.3fr;gap:40px;padding-block:52px 44px}
.foot > div{min-width:0}
footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
footer ul{list-style:none;display:grid;gap:8px}
footer a:hover{color:#fff;text-decoration:underline}
footer .logo{color:#fff;margin-bottom:14px}
footer .logo small{color:#7f91a8}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-block:16px;font-size:.88rem;color:#7f91a8}

/* Back-to-top */
.to-top{position:fixed;right:calc(20px + env(safe-area-inset-right,0px));bottom:calc(20px + env(safe-area-inset-bottom,0px));z-index:60;width:46px;height:46px;border:0;border-radius:4px;background:var(--navy);color:#fff;display:grid;place-items:center;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s,background .15s}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--rust)}

@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Responsive */
@media (max-width:1060px){
  .nav-call{display:none}
  .foot{grid-template-columns:1fr 1fr}
  .visit .container{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  #navMenu{position:fixed;inset:calc(76px + env(safe-area-inset-top,0px)) 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:#fff;padding:8px max(20px,env(safe-area-inset-right,0px)) 18px max(20px,env(safe-area-inset-left,0px));border-bottom:1px solid var(--line);box-shadow:0 14px 30px rgba(13,39,68,.12);display:none}
  #navMenu.open{display:flex}
  #navMenu > li > a,.dd-btn{display:flex;width:100%;padding:12px 0;border-bottom:1px solid var(--line)}
  #navMenu > li > a.active::after,.dd-btn.active::after,.dd-menu::before{display:none}
  .dd-btn{justify-content:space-between}
  .dd-menu{position:static;min-width:0;box-shadow:none;border:0;padding:0 0 0 12px}
  .dd:hover .dd-menu,.dd:focus-within .dd-menu{display:none}
  .dd:hover .dd-btn svg{transform:none}
  .dd.open .dd-menu{display:block}
  .dd.open .dd-btn svg{transform:rotate(180deg)}
  .dd-menu a{padding:10px 0}
  .menu-btn{display:block}
  .split,.split-wide,.contact-grid,.cols3,.trades{grid-template-columns:1fr}
  .cols3{gap:44px}
  .ruled li{grid-template-columns:1fr;gap:2px}
  section{padding-block:56px}
  .banner,.banner-home{padding-block:72px 64px}
  .banner::before{background:linear-gradient(180deg,rgba(9,28,50,.88),rgba(9,28,50,.8))}
}
@media (max-width:600px){
  .band{display:none}
  .ruled.two,.frow,.foot,.visit .container{grid-template-columns:1fr}
  .ruled.two li:nth-child(2){border-top:0}
  .list-cols{columns:1}
  .details li{grid-template-columns:1fr;gap:2px}
  .actions .btn{width:100%}
  form{padding:22px}
}