/* Onsite Energy Services - onsiteenergyservices.com
   Black + steel, taken from the OES swoosh mark. The mark is black-on-transparent,
   so it sits on the white header; the dark steel carries the hero, bands and footer. */

:root{
  --ink:#1A1A1A;
  --steel:#2B2E32;
  --steel-deep:#131416;
  --muted:#62666B;
  --silver:#8C9196;       /* accent - rules, eyebrows */
  --silver-light:#C5C9CD; /* accent on dark ground */
  --paper:#F4F5F6;
  --card:#FFFFFF;
  --rule:#D9DCDF;
  --max:1140px;
  --pad:clamp(1rem,4vw,2.5rem);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:"Barlow",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:1.0625rem;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit;text-underline-offset:.18em}
a:hover{color:var(--muted)}
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--pad)}

h1,h2,h3{font-family:"Barlow Condensed","Barlow",sans-serif;font-weight:700;line-height:1.05;margin:0 0 .5em;letter-spacing:.005em}
h1{font-size:clamp(2.4rem,7vw,4.4rem);text-transform:uppercase}
h2{font-size:clamp(1.8rem,4vw,2.7rem);text-transform:uppercase}
h3{font-size:1.35rem;text-transform:uppercase;letter-spacing:.03em}
p{margin:0 0 1.1em;max-width:64ch}
.lede{font-size:clamp(1.12rem,2.2vw,1.32rem);line-height:1.5}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
  margin:0 0 1rem;display:flex;align-items:center;gap:.7rem}
.eyebrow::before{content:"";width:2rem;height:3px;background:var(--silver);flex:none}

/* top bar - phone and the bid button on every page, every width */
.topbar{background:var(--steel-deep);color:#C5C9CD;font-size:.82rem;letter-spacing:.06em}
.topbar-in{display:flex;justify-content:space-between;align-items:center;gap:.5rem 1.5rem;min-height:2.4rem}
.topbar a{color:#fff;text-decoration:none;font-weight:700}
.tb-act{display:flex;align-items:center;gap:1rem;margin-left:auto}
.tb-bid{background:#fff;color:var(--ink)!important;padding:.3rem .75rem;border-radius:2px;text-transform:uppercase;letter-spacing:.1em;font-size:.75rem}
.tb-bid:hover{background:var(--silver-light)}
@media (max-width:640px){.tb-note{display:none}.tb-act{margin:0 auto}}

/* header - white, so the black-and-silver mark reads as drawn */
.site-head{background:#fff;border-bottom:4px solid var(--steel-deep);position:relative;z-index:5}
.head-in{display:flex;align-items:center;justify-content:space-between;gap:.75rem 2rem;padding-block:.7rem}
.logo img{width:clamp(120px,18vw,168px)}
.nav{display:flex;align-items:center;gap:.25rem clamp(.9rem,2vw,1.6rem);flex-wrap:wrap;justify-content:flex-end}
.nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.86rem;letter-spacing:.08em;text-transform:uppercase;padding:.35rem 0}
.nav a:hover,.nav a[aria-current]{color:var(--muted);box-shadow:inset 0 -2px 0 var(--silver)}
.nav .tel{background:var(--steel-deep);color:#fff;padding:.5rem .9rem;border-radius:2px}
.nav .tel:hover{color:#fff;box-shadow:none;background:var(--steel)}
.menu-btn{display:none;background:none;border:2px solid var(--ink);border-radius:2px;font:inherit;font-weight:700;
  font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;padding:.45rem .7rem;cursor:pointer;color:var(--ink)}
@media (max-width:1060px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:4px solid var(--steel-deep);
    flex-direction:column;align-items:stretch;padding:.5rem var(--pad) 1rem;gap:0}
  .nav.open{display:flex}
  .nav a{padding:.75rem 0;border-bottom:1px solid var(--rule);font-size:.95rem}
  .nav a:hover,.nav a[aria-current]{box-shadow:none}
  .nav .tel{margin-top:.75rem;text-align:center;border-bottom:0}
}

/* buttons */
.btn{display:inline-block;background:var(--steel-deep);color:#fff;text-decoration:none;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;font-size:.95rem;padding:.9rem 1.5rem;border:0;border-radius:2px;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--steel);color:#fff}
.btn.light{background:#fff;color:var(--ink)}
.btn.light:hover{background:var(--silver-light);color:var(--ink)}
.btn.ghost{background:transparent;border:2px solid rgba(255,255,255,.6);color:#fff;padding:calc(.9rem - 2px) calc(1.5rem - 2px)}
.btn.ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* hero */
.hero{background:
  repeating-linear-gradient(180deg,transparent 0 46px,rgba(255,255,255,.03) 46px 47px),
  linear-gradient(160deg,var(--steel) 0%,var(--steel-deep) 72%);
  color:#fff;padding-block:clamp(3.5rem,10vw,7.5rem)}
.hero .eyebrow{color:var(--silver-light)}
.hero .eyebrow::before{background:var(--silver-light)}
.hero p{color:#D5D8DB}
.hero .actions{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2rem}
.hero.short{padding-block:clamp(2.75rem,7vw,4.5rem)}

/* sections */
section{padding-block:clamp(3rem,8vw,5.5rem)}
.grid2,.grid3{display:grid;gap:1.5rem}
.grid2{grid-template-columns:repeat(auto-fit,minmax(min(100%,21rem),1fr))}
.grid3{grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr))}
.card{background:var(--card);border:1px solid var(--rule);border-top:4px solid var(--steel-deep);padding:clamp(1.4rem,3vw,2.1rem)}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card ul{margin:0;padding-left:1.1rem}
.card li{margin-bottom:.35rem}
.card .more{font-weight:700;font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;display:inline-block;margin-top:.9rem}
.card .more::after{content:" \2192"}
.card.lead{border-top-color:var(--silver);background:var(--steel-deep);color:#fff;border-color:var(--steel-deep)}
.card.lead p,.card.lead li{color:#D5D8DB}
.card.lead .more{color:#fff}
.band{background:var(--steel-deep);color:#fff}
.band p{color:#D5D8DB}
.band .eyebrow{color:var(--silver-light)}
.band-in{display:flex;justify-content:space-between;align-items:center;gap:1.5rem 3rem;flex-wrap:wrap}
.band h2{margin:0 0 .3em}
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:.6rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr))}
.checklist li{background:var(--card);border-left:4px solid var(--silver);padding:.8rem 1rem}
.split{display:grid;gap:2rem 3rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,22rem),1fr));align-items:start}

/* form */
.form{background:var(--card);border:1px solid var(--rule);padding:clamp(1.1rem,3.5vw,2.5rem);max-width:52rem}
fieldset{border:0;margin:0 0 2rem;padding:0;min-width:0}
legend{font-family:"Barlow Condensed",sans-serif;font-weight:700;font-size:1.3rem;text-transform:uppercase;letter-spacing:.03em;
  padding:0 0 .35rem;margin-bottom:1rem;border-bottom:2px solid var(--steel-deep);width:100%}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,14rem),1fr));gap:1rem;margin-bottom:1rem}
label{display:block;font-weight:600;font-size:.95rem;margin-bottom:.3rem}
.req{color:#9B2C2C}
.hint{display:block;font-weight:400;color:var(--muted);font-size:.85rem}
input[type=text],input[type=email],input[type=tel],input[type=date],select,textarea{
  width:100%;font:inherit;font-size:1rem;padding:.7rem .8rem;border:1px solid #B9BDC1;border-radius:2px;background:#fff;color:var(--ink)}
textarea{min-height:6.5rem;resize:vertical}
input:focus,select:focus,textarea:focus{outline:3px solid rgba(43,46,50,.25);border-color:var(--steel)}
.choices{display:flex;gap:1.25rem;flex-wrap:wrap}
.choices label{font-weight:400;display:flex;align-items:center;gap:.4rem;margin:0}
.check{display:flex;gap:.6rem;align-items:flex-start;font-weight:400}
.check input{margin-top:.35rem;flex:none}
input[type=file]{font:inherit;font-size:.95rem;max-width:100%}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.alert{background:#FBEFEF;border-left:4px solid #9B2C2C;padding:1rem 1.25rem;margin-bottom:1.5rem}
.alert[hidden]{display:none}
.fine{font-size:.88rem;color:var(--muted)}
.contact-list{list-style:none;padding:0;margin:0 0 1.5rem}
.contact-list li{padding:.55rem 0;border-bottom:1px solid var(--rule)}
.contact-list b{display:inline-block;min-width:6.5rem;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* footer */
.site-foot{background:var(--steel-deep);color:#A9ADB2;font-size:.92rem;padding-block:2.5rem}
.foot-in{display:flex;justify-content:space-between;gap:1.5rem 3rem;flex-wrap:wrap}
.site-foot a{color:#fff}
.site-foot p{margin:0 0 .4rem}
.foot-nav{display:flex;flex-wrap:wrap;gap:.3rem 1.2rem}
.foot-nav a{text-decoration:none}