:root{
  --ink:#16211C; --frost:#EFF6F5; --panel:#1E2C26;
  --coolant:#2F8F8A; --heat:#E2572B; --steel:#5B6B6A; --line:rgba(22,33,28,0.12);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Space Grotesk',sans-serif; background:var(--frost); color:var(--ink); line-height:1.55; -webkit-font-smoothing:antialiased;}
h1,h2,h3{font-family:'Space Grotesk',sans-serif; font-weight:700; letter-spacing:-0.02em; line-height:1.06;}
.mono{font-family:'IBM Plex Mono',monospace;}
.wrap{max-width:1140px; margin:0 auto; padding:0 24px;}
a{color:inherit; text-decoration:none;}

/* ---- logo mark: minimal vent/dial icon ---- */
.logo-mark{width:30px; height:30px; flex-shrink:0;}

header{background:var(--ink); color:var(--frost); position:sticky; top:0; z-index:50;}
.nav{display:flex; align-items:center; justify-content:space-between; padding:18px 0;}
.brand{display:flex; align-items:center; gap:10px; font-weight:700; font-size:19px;}
.navlinks{display:flex; align-items:center; gap:30px; font-size:14px; font-weight:500;}
.navlinks a{opacity:0.75; transition:opacity .15s;}
.navlinks a:hover, .navlinks a.active{opacity:1;}
.call-pill{background:var(--heat); color:white; padding:9px 18px; border-radius:2px; font-weight:700; font-size:13.5px; font-family:'IBM Plex Mono',monospace;}
@media (max-width:760px){ .navlinks a:not(.call-pill){display:none;} }

/* ---- dial divider: signature structural element ---- */
.dial-divider{ position:relative; height:64px; background:var(--frost); overflow:hidden; }
.dial-divider::before{
  content:""; position:absolute; left:50%; top:-100px; transform:translateX(-50%);
  width:220px; height:220px; border-radius:50%;
  background: conic-gradient(var(--coolant) 0deg 252deg, var(--heat) 252deg 288deg, var(--ink) 288deg 360deg);
}
.dial-divider::after{
  content:""; position:absolute; left:50%; top:-84px; transform:translateX(-50%);
  width:188px; height:188px; border-radius:50%; background:var(--frost);
}
.dial-divider.on-ink{background:var(--ink);}
.dial-divider.on-ink::after{background:var(--ink);}

.hero{background:var(--ink); color:var(--frost); padding:70px 0 0;}
.hero-inner{display:grid; grid-template-columns:1.15fr 0.85fr; gap:56px; align-items:center; padding-bottom:64px;}
@media (max-width:900px){ .hero-inner{grid-template-columns:1fr; padding-bottom:48px;} }
.eyebrow{font-family:'IBM Plex Mono',monospace; font-size:12.5px; font-weight:500; letter-spacing:0.1em; text-transform:uppercase; color:var(--coolant); margin-bottom:18px;}
.hero h1{font-size:clamp(32px,5vw,52px); margin-bottom:20px; max-width:15ch;}
.hero p.lead{font-size:17px; color:rgba(239,246,245,0.68); max-width:44ch; margin-bottom:30px;}
.cta-row{display:flex; align-items:center; gap:22px; flex-wrap:wrap;}
.btn-primary{background:var(--heat); color:white; font-weight:700; font-size:14.5px; padding:15px 28px; border-radius:2px; display:inline-block; border:none; cursor:pointer; font-family:'Space Grotesk',sans-serif;}
.btn-primary:hover{background:#C64A24;}
.btn-ghost{border:1px solid rgba(239,246,245,0.3); color:var(--frost); padding:14px 26px; border-radius:2px; font-weight:600; font-size:14.5px;}

.readout{background:var(--panel); border:1px solid rgba(239,246,245,0.08); border-radius:4px; padding:0; overflow:hidden;}
.readout-head{padding:16px 22px; border-bottom:1px solid rgba(239,246,245,0.08); font-family:'IBM Plex Mono',monospace; font-size:11.5px; letter-spacing:0.1em; text-transform:uppercase; color:var(--coolant);}
.readout-row{display:flex; justify-content:space-between; align-items:baseline; padding:16px 22px; border-bottom:1px solid rgba(239,246,245,0.06);}
.readout-row:last-child{border-bottom:none;}
.readout-row .k{font-size:13.5px; color:rgba(239,246,245,0.55);}
.readout-row .v{font-family:'IBM Plex Mono',monospace; font-size:16px; font-weight:500; color:var(--frost);}
.readout-row .v.hot{color:var(--heat);}
.readout-row .v.cool{color:var(--coolant);}

section{padding:64px 0;}
.section-head{margin-bottom:40px; max-width:60ch;}
.section-head .eyebrow{color:var(--heat);}
.section-head h2{font-size:clamp(24px,3.2vw,34px); color:var(--ink);}
.services{background:var(--frost);}
.service-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line);}
@media (max-width:760px){ .service-grid{grid-template-columns:1fr;} }
.service-card{background:var(--frost); padding:30px 26px;}
.service-card .idx{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--heat); margin-bottom:16px;}
.service-card h3{font-size:18px; color:var(--ink); margin-bottom:10px;}
.service-card p{font-size:14px; color:var(--steel);}
.service-card a.more{display:inline-block; margin-top:14px; font-size:13px; font-weight:700; color:var(--coolant);}

.why{background:var(--ink); color:var(--frost);}
.why .section-head h2{color:var(--frost);}
.why .section-head .eyebrow{color:var(--coolant);}
.why-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:32px;}
@media (max-width:760px){ .why-grid{grid-template-columns:1fr;} }
.why-item .mono-tag{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--coolant); margin-bottom:10px;}
.why-item h3{font-size:18px; margin-bottom:8px;}
.why-item p{font-size:14px; color:rgba(239,246,245,0.6);}

.gallery{background:var(--frost);}
.gallery-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:14px;}
@media (max-width:760px){ .gallery-grid{grid-template-columns:1fr 1fr;} }
.gallery-item{aspect-ratio:4/3; border-radius:3px; background:linear-gradient(135deg,#DCE7E5 0%,#C9D8D5 100%); display:flex; align-items:center; justify-content:center; border:1px dashed var(--steel);}
.gallery-item span{font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--steel); text-align:center; padding:0 10px;}

.reviews{background:var(--panel); color:var(--frost);}
.review-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:22px;}
@media (max-width:760px){ .review-grid{grid-template-columns:1fr;} }
.review-card{background:rgba(239,246,245,0.04); border:1px solid rgba(239,246,245,0.08); border-radius:4px; padding:22px;}
.review-card .stars{color:var(--heat); font-family:'IBM Plex Mono',monospace; font-size:13px; margin-bottom:12px;}
.review-card p{font-size:14px; margin-bottom:14px; color:rgba(239,246,245,0.85);}
.review-card .name{font-size:12px; font-family:'IBM Plex Mono',monospace; color:var(--coolant);}

.faq-list{max-width:740px;}
.faq-item{border-bottom:1px solid var(--line); padding:20px 0;}
.faq-item h3{font-size:16px; font-weight:700; color:var(--ink); margin-bottom:8px;}
.faq-item p{font-size:14px; color:var(--steel); max-width:60ch;}

.final-cta{background:var(--heat); color:white; text-align:center; padding:72px 24px;}
.final-cta h2{font-size:clamp(26px,3.8vw,40px); margin-bottom:14px; color:white;}
.final-cta p{font-size:15px; color:rgba(255,255,255,0.85); margin-bottom:28px;}
.final-cta .btn-primary{background:var(--ink);}
.final-cta .btn-primary:hover{background:#000;}

footer{background:var(--ink); color:rgba(239,246,245,0.5); padding:36px 0; font-size:13px;}
.foot-row{display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;}

.sticky-call{position:fixed; bottom:0; left:0; right:0; z-index:60; background:var(--heat); color:white; text-align:center; padding:14px; font-weight:700; font-size:14.5px; display:none;}
@media (max-width:760px){ .sticky-call{display:block;} body{padding-bottom:52px;} }

.page-hero{background:var(--ink); color:var(--frost); padding:60px 0 52px;}
.page-hero .eyebrow{margin-bottom:14px;}
.page-hero h1{font-size:clamp(28px,4.2vw,44px); max-width:20ch;}
.page-hero p{font-size:16px; color:rgba(239,246,245,0.68); max-width:52ch; margin-top:14px;}

/* Services detail page */
.service-detail{display:grid; grid-template-columns:1fr 1fr; gap:56px; padding:52px 0; border-bottom:1px solid var(--line); align-items:start;}
.service-detail:last-child{border-bottom:none;}
@media (max-width:800px){ .service-detail{grid-template-columns:1fr; gap:22px;} }
.service-detail .tag{font-family:'IBM Plex Mono',monospace; font-size:11.5px; letter-spacing:0.08em; text-transform:uppercase; color:var(--heat); margin-bottom:12px;}
.service-detail h2{font-size:24px; margin-bottom:14px;}
.service-detail p{font-size:14.5px; color:var(--steel); margin-bottom:16px;}
.service-detail ul{list-style:none;}
.service-detail li{font-size:14px; color:var(--ink); padding:9px 0; border-top:1px solid var(--line); padding-left:22px; position:relative;}
.service-detail li:first-child{border-top:none;}
.service-detail li::before{content:"→"; position:absolute; left:0; color:var(--coolant); font-weight:700;}
.detail-readout{background:var(--panel); border-radius:4px; padding:0; overflow:hidden;}

/* About page */
.story{max-width:70ch;}
.story p{font-size:15.5px; color:var(--steel); margin-bottom:20px;}
.values-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:26px; margin-top:20px;}
@media (max-width:700px){ .values-grid{grid-template-columns:1fr;} }
.value-card{background:white; border:1px solid var(--line); border-radius:4px; padding:24px;}
.value-card .mono-tag{font-family:'IBM Plex Mono',monospace; font-size:11.5px; color:var(--heat); margin-bottom:8px;}
.value-card h3{font-size:17px; margin-bottom:8px;}
.value-card p{font-size:14px; color:var(--steel);}

/* Contact page */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:52px;}
@media (max-width:800px){ .contact-grid{grid-template-columns:1fr;} }
.contact-info-row{display:flex; gap:14px; padding:14px 0; border-bottom:1px solid var(--line);}
.contact-info-row .label{font-family:'IBM Plex Mono',monospace; font-size:11px; text-transform:uppercase; letter-spacing:0.06em; color:var(--heat); font-weight:700; width:120px; flex-shrink:0;}
.contact-info-row .val{font-size:14.5px; color:var(--ink);}
.form-group{margin-bottom:16px;}
.form-group label{display:block; font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--steel); margin-bottom:6px;}
.form-group input, .form-group textarea{width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:2px; font-family:'Space Grotesk',sans-serif; font-size:14.5px; background:white; color:var(--ink);}
.form-group textarea{min-height:100px; resize:vertical;}
.map-box{background:linear-gradient(135deg,#DCE7E5 0%,#C9D8D5 100%); border:1px dashed var(--steel); border-radius:4px; aspect-ratio:16/10; display:flex; align-items:center; justify-content:center; margin-top:22px;}
.map-box span{font-family:'IBM Plex Mono',monospace; font-size:12px; color:var(--steel);}