/* Layout: petrol ink on cool paper, energy-label A–G bars as the recurring motif; left-aligned editorial columns, 1120px frame */
:root{
  --ink:#10242c; --ink-soft:#4a5d65; --paper:#f4f7f6; --card:#ffffff; --line:#d9e2e0;
  --petrol:#0e4a57; --petrol-deep:#08323b; --amber:#f5b400; --wa:#1faa55;
  --display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"Figtree","Segoe UI",system-ui,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--petrol)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
h1,h2,h3{font-family:var(--display);line-height:1.12;text-wrap:balance;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.3rem);font-weight:700}
h2{font-size:clamp(1.5rem,3.2vw,2.1rem);font-weight:650}
h3{font-size:1.18rem;font-weight:650}
p{margin:0}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.prose{max-width:66ch;display:flex;flex-direction:column;gap:14px}
.prose ul,.prose ol{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:6px}

/* header */
.top{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.top .wrap{display:flex;align-items:center;gap:20px;min-height:66px;flex-wrap:wrap}
.brand{font-family:var(--display);font-weight:750;font-size:1.22rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px;margin-right:auto}
.brand i{display:inline-flex;flex-direction:column;gap:2px}
.brand i b{display:block;height:4px;border-radius:1px}
.brand i b:nth-child(1){width:10px;background:#00a651}.brand i b:nth-child(2){width:15px;background:#bfd730}.brand i b:nth-child(3){width:20px;background:#fdb913}.brand i b:nth-child(4){width:25px;background:#ed1c24}
.nav{display:flex;gap:4px;align-items:center;flex-wrap:wrap}
.nav a{color:var(--ink);text-decoration:none;font-weight:550;font-size:.95rem;padding:8px 10px;border-radius:6px}
.nav a:hover{background:var(--paper)}
.nav a[aria-current="page"]{color:var(--petrol);box-shadow:inset 0 -2px 0 var(--amber)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 12px;font:600 .95rem var(--body);color:var(--ink);cursor:pointer}
@media(max-width:900px){
  .menu-btn{display:block}
  .nav{display:none;width:100%;flex-direction:column;align-items:stretch;padding-bottom:14px}
  .nav.open{display:flex}
  .nav a{padding:11px 8px}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:650 1rem var(--body);padding:13px 22px;border-radius:8px;text-decoration:none;border:2px solid transparent;cursor:pointer;line-height:1.2}
.btn-main{background:var(--amber);color:var(--ink)}
.btn-main:hover{background:#ffc61f}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{background:#19964a}
.btn-ghost{border-color:currentColor;color:inherit;background:transparent}
.nav .btn{padding:9px 16px;font-size:.95rem}
.btns{display:flex;gap:12px;flex-wrap:wrap}

/* hero */
.hero{background:var(--petrol-deep);color:#fff}
.hero .wrap{display:grid;grid-template-columns:1.25fr .9fr;gap:48px;align-items:center;padding-top:64px;padding-bottom:64px}
.hero p.lead{font-size:1.15rem;color:#cfe0e2;max-width:54ch}
.hero .col{display:flex;flex-direction:column;gap:22px}
.eyebrow{font:650 .82rem var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--amber)}
.page-head{background:var(--petrol-deep);color:#fff}
.page-head .wrap{padding-top:48px;padding-bottom:48px;display:flex;flex-direction:column;gap:16px}
.page-head p.lead{font-size:1.1rem;color:#cfe0e2;max-width:62ch}
.crumb{font-size:.88rem;color:#9fbcc0}
.crumb a{color:#cfe0e2}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr;padding-top:44px;padding-bottom:44px;gap:32px}}

/* energy label */
.label{background:#fff;border-radius:12px;padding:22px 22px 16px;color:var(--ink);display:flex;flex-direction:column;gap:7px;max-width:380px;width:100%;justify-self:end}
.label .cap{font:650 .78rem var(--body);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:6px}
.label .row{display:flex;align-items:center;gap:10px}
.label .bar{height:30px;display:flex;align-items:center;padding-left:12px;font:750 1rem var(--display);color:#fff;clip-path:polygon(0 0,calc(100% - 14px) 0,100% 50%,calc(100% - 14px) 100%,0 100%)}
.label .bar.dark{color:var(--ink)}
.label .tag{margin-left:auto;background:var(--ink);color:#fff;font:750 1rem var(--display);padding:4px 12px 4px 20px;clip-path:polygon(12px 0,100% 0,100% 100%,12px 100%,0 50%)}
.label .note{font-size:.8rem;color:var(--ink-soft);margin-top:8px}
@media(max-width:820px){.label{justify-self:start}}

/* sections */
section.band{padding:64px 0}
section.band.alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;flex-direction:column;gap:10px;margin-bottom:30px;max-width:60ch}
.sec-head p{color:var(--ink-soft)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media(max-width:820px){.grid3,.grid2{grid-template-columns:1fr}section.band{padding:44px 0}}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:24px;display:flex;flex-direction:column;gap:10px}
.band.alt .card{background:var(--paper)}
.card p{color:var(--ink-soft)}
.card a.more{margin-top:auto;font-weight:650;text-decoration:none}
.card a.more:hover{text-decoration:underline}
.svc{border-top:5px solid var(--petrol)}
.svc:nth-child(2){border-top-color:#50b848}.svc:nth-child(3){border-top-color:var(--amber)}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;list-style:none;margin:0;padding:0}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:24px;display:flex;flex-direction:column;gap:8px}
.band.alt .steps li{background:var(--paper)}
.steps li::before{content:counter(s);font:750 1.5rem var(--display);width:44px;height:44px;border-radius:50%;background:var(--petrol);color:#fff;display:flex;align-items:center;justify-content:center}
.steps li p{color:var(--ink-soft)}
@media(max-width:820px){.steps{grid-template-columns:1fr}}
.types{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.types a{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:16px 18px;text-decoration:none;color:var(--ink);font-weight:600}
.types a::after{content:"→";color:var(--petrol)}
.types a:hover{border-color:var(--petrol)}
@media(max-width:820px){.types{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.types{grid-template-columns:1fr}}
.checks{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px}
.checks li{padding-left:34px;position:relative}
.checks li::before{content:"";position:absolute;left:0;top:5px;width:20px;height:12px;background:#00a651;clip-path:polygon(0 0,calc(100% - 6px) 0,100% 50%,calc(100% - 6px) 100%,0 100%)}
.checks li span{display:block;color:var(--ink-soft)}
@media(max-width:820px){.checks{grid-template-columns:1fr}}
.partner{background:var(--petrol);color:#fff;border-radius:14px;padding:36px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.partner div{display:flex;flex-direction:column;gap:10px;max-width:60ch}
.partner p{color:#d3e4e6}

/* faq */
.faq{display:flex;flex-direction:column;gap:10px;max-width:820px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:8px}
.faq summary{cursor:pointer;font-weight:650;padding:16px 46px 16px 18px;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:12px;font:500 1.5rem var(--display);color:var(--petrol)}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 18px 18px;color:var(--ink-soft)}

/* two-col content + form */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start}
@media(max-width:900px){.split{grid-template-columns:1fr}}
.quote-form{background:var(--card);border:1px solid var(--line);border-top:5px solid var(--amber);border-radius:10px;padding:26px;display:flex;flex-direction:column;gap:14px;scroll-margin-top:90px}
.quote-form .hint{color:var(--ink-soft);font-size:.92rem}
.field{display:flex;flex-direction:column;gap:5px}
.field label{font-weight:600;font-size:.92rem}
.field input,.field select,.field textarea{font:inherit;padding:11px 12px;border:1px solid #b9c7c5;border-radius:7px;background:#fff;color:var(--ink);width:100%}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:480px){.frow{grid-template-columns:1fr}}
.quote-form details summary{cursor:pointer;font-weight:600;color:var(--petrol)}
.quote-form details .inner{display:flex;flex-direction:column;gap:14px;margin-top:14px}
.form-done{background:#e9f6ee;border:1px solid #b5dcc3;border-radius:8px;padding:14px;display:flex;flex-direction:column;gap:10px}
.form-done[hidden]{display:none}
.contact-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.contact-list b{display:block;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}

/* footer */
footer{background:var(--ink);color:#c5d2d5;padding:48px 0 90px;font-size:.95rem}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
@media(max-width:820px){footer .cols{grid-template-columns:1fr 1fr}}
@media(max-width:480px){footer .cols{grid-template-columns:1fr}}
footer h3{color:#fff;font-size:1rem;margin-bottom:12px}
footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px}
footer a{color:#c5d2d5;text-decoration:none}
footer a:hover{color:#fff;text-decoration:underline}
footer .fine{border-top:1px solid #2a4049;margin-top:32px;padding-top:18px;font-size:.85rem;color:#8ea3a8}
.float{position:fixed;right:16px;bottom:16px;z-index:30;display:flex;flex-direction:column;gap:10px}
.float a{display:flex;align-items:center;gap:8px;padding:12px 18px;border-radius:999px;font-weight:650;text-decoration:none;box-shadow:0 4px 14px rgba(0,0,0,.25);font-size:.95rem}
.float .w{background:var(--wa);color:#fff}
.float .c{background:var(--card);color:var(--ink);border:1px solid var(--line)}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}