/* ================================================================
   BAF Industries — Site styles (v3)
   Brand system: Technical Modernism / Precision Grid
   ================================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root{
  /* Dominant */
  --navy:#06172C;        /* Grid Navy */
  --navy2:#0A1322;       /* Active Panel */
  --navy3:#111820;       /* Carbon Grid */
  --slate:#344150;       /* Data Steel */
  --muted:#75808C;       /* Alloy Grey */
  --line:#D7DDE4;        /* Gridline Grey */
  --line2:#EEF3F8;       /* Cool Panel */
  --paper:#F8FAFC;       /* System White */
  --paper2:#EEF3F8;      /* Cool Panel */
  --mist:#DCEAFF;        /* Diagnostic Blue Mist */
  --white:#FFFFFF;
  --blue:#1764FF;        /* Command Blue — primary accent */
  --blue2:#5B9BFF;       /* Ion Blue — secondary */
  --cyan:#5B9BFF;        /* alias kept for legacy refs */
  --green:#16a34a;
  --amber:#e8a329;
  --max:1200px;
  --gutter:24px;
  --radius:12px;
  --radius-lg:16px;
  --font:'Inter',ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  --shadow-sm:0 6px 18px rgba(6,23,44,.06);
  --shadow-md:0 18px 48px rgba(6,23,44,.08);
  --shadow-lg:0 28px 70px rgba(6,23,44,.14);
}


*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--navy);background:var(--paper);line-height:1.65;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
h1,h2,h3{letter-spacing:-.02em}

.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}

/* -------- Header -------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--navy);text-decoration:none}
.brand-mark{display:block;width:408px;height:103px;background:url('/assets/baf-logo.png') left center / contain no-repeat;text-indent:-9999px;overflow:hidden;flex-shrink:0}
.brand>span:not(.brand-mark){position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--slate);font-weight:600;font-size:14px;padding:10px 12px;border-radius:999px;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{background:var(--line2);color:var(--navy)}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;font-weight:800;cursor:pointer;text-align:center}
.nav-cta{background:var(--blue);color:#fff;padding:12px 18px;font-size:14px;white-space:nowrap}
.menu{display:none;background:var(--line2);border:1px solid var(--line);color:var(--navy);border-radius:12px;width:44px;height:44px;font-size:18px}
/* Footer brand mark stays white on dark */
.footer .brand-mark{filter:brightness(0) invert(1)}
.footer .brand{color:#fff}

/* -------- Hero -------- */
.hero{
  position:relative;min-height:415px;display:flex;align-items:center;color:#fff;
  background:
    linear-gradient(90deg,rgba(7,19,35,.97) 0%,rgba(7,19,35,.88) 42%,rgba(7,19,35,.55) 72%,rgba(7,19,35,.3) 100%),
    url('/assets/hvac-installed.jpg') center/cover;
}
.hero-inner{max-width:920px;padding-block:40px}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12px;text-transform:uppercase;letter-spacing:.18em;font-weight:800;color:#9ff3ff}
.kicker:before{content:"";width:34px;height:2px;background:currentColor}
section .kicker{color:var(--blue)}
.dark .kicker{color:#9ff3ff}
.hero h1,.page-hero h1{font-size:clamp(42px,5vw,76px);line-height:1.04;margin:24px 0 22px;letter-spacing:-.025em}
.hero h1{max-width:900px}
.hero h1 span{color:var(--blue2)}
.hero p,.page-hero p{font-size:18px;max-width:720px;color:rgba(255,255,255,.85)}
.hero-subhead{margin-top:0}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px}
.btn{padding:14px 22px;background:var(--blue);color:#fff;font-size:14px;letter-spacing:.01em}
.btn.secondary{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:#fff}
.btn:hover{filter:brightness(1.08)}

/* -------- Sections -------- */
section{padding:96px 0;position:relative}
.section-head{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end;margin-bottom:48px}
.section-head h2{font-size:clamp(32px,3.8vw,52px);line-height:1.07;margin:14px 0 0}
.section-head p{font-size:17px;color:#4f6177;margin:0}
.dark{background:var(--navy);color:#fff}
.dark .section-head p,.dark p{color:rgba(255,255,255,.74)}

/* Decorated tile sections: subtle blueprint/grid pattern + accent blobs */
.tile-section{
  position:relative;overflow:hidden;
  background:
    linear-gradient(135deg,rgba(23,100,255,.05) 0%,rgba(220,234,255,.35) 40%,rgba(248,250,252,0) 100%),
    var(--paper);
}
.tile-section.dark{background:var(--navy)}
.tile-section:before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.75;
  background-image:
    linear-gradient(rgba(23,100,255,.08) 1px,transparent 1px),
    linear-gradient(90deg,rgba(23,100,255,.08) 1px,transparent 1px);
  background-size:48px 48px,48px 48px;
  mask-image:radial-gradient(ellipse at top right,#000 0%,transparent 70%);
}
.tile-section.dark:before{
  opacity:.5;
  background-image:
    linear-gradient(rgba(159,243,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(159,243,255,.06) 1px,transparent 1px);
}
.tile-section:after{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,155,255,.22),transparent 65%);
  top:-180px;right:-160px;pointer-events:none;filter:blur(20px);
}
.tile-section.dark:after{background:radial-gradient(circle,rgba(47,116,255,.28),transparent 65%)}
.tile-section>.container{position:relative;z-index:1}

/* -------- Grid system -------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}

/* -------- Cards -------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;display:flex;flex-direction:column;gap:10px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c7d3e2}
.card h3{margin:0;font-size:20px;line-height:1.25}
.card p{margin:0;color:#52657b}
.dark .card{background:#142337;border-color:rgba(255,255,255,.12)}
.dark .card p{color:rgba(255,255,255,.75)}
.dark .card:hover{border-color:rgba(255,255,255,.22)}

/* Decorated card: numbered/icon hint chip in corner */
.card.with-icon{padding-top:30px}
.card .ico{
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,rgba(33,199,232,.18),rgba(47,116,255,.18));
  color:var(--blue);display:grid;place-items:center;
  margin-bottom:6px;border:1px solid rgba(47,116,255,.18);
}
.card .ico svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:block}
.dark .card .ico{background:linear-gradient(135deg,rgba(33,199,232,.18),rgba(47,116,255,.25));color:#9ff3ff;border-color:rgba(159,243,255,.25)}

/* Feature row (image + dark text card on home) */
.feature{display:grid;grid-template-columns:.95fr 1.05fr;gap:24px;align-items:stretch}
.feature .card.dark{background:#0b1728;color:#fff;border:1px solid rgba(255,255,255,.08)}
.feature .card.dark p{color:rgba(255,255,255,.75)}
.feature-img{
  border-radius:var(--radius);min-height:440px;
  background:center/cover no-repeat;
  position:relative;overflow:hidden;
  box-shadow:var(--shadow-md);
}
.feature-img:after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(7,19,35,.4) 100%);
}

/* Image-card (visual capability tiles) */
.image-card{overflow:hidden;padding:0;display:flex;flex-direction:column}
.image-card img{height:220px;width:100%;object-fit:cover;display:block}
.image-card>div{padding:22px;display:flex;flex-direction:column;gap:8px;flex:1}

/* Tags / checklists / labels */
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{font-size:12px;font-weight:700;background:#eef5fb;color:#29435e;border-radius:999px;padding:7px 11px;letter-spacing:.01em}
.dark .tag{background:rgba(255,255,255,.1);color:#dbeafe}
.check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.check-list li{padding:14px 16px;border-radius:10px;background:#f1f5f9;color:#26374b;position:relative;padding-left:42px;font-size:14.5px}
.check-list li:before{
  content:"";position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:18px;height:18px;border-radius:50%;
  background:var(--blue);
  box-shadow:0 0 0 4px rgba(23,100,255,.12);
}
.dark .check-list li{background:rgba(255,255,255,.06);color:rgba(255,255,255,.86)}

/* -------- Page hero -------- */
.page-hero{
  padding:110px 0 90px;
  background:
    linear-gradient(135deg,rgba(7,19,35,.94),rgba(19,37,58,.85)),
    url('/assets/hvac-workshop.jpg') center/cover;
  color:#fff;position:relative;
}
.page-hero h1{max-width:930px;margin-top:18px}
.page-hero--products{background:linear-gradient(135deg,rgba(7,19,35,.88),rgba(19,37,58,.78)),url('/assets/products-hero-bg.jpg') center/cover}

/* -------- Content layout (sub-pages) -------- */
.content-layout{display:grid;grid-template-columns:240px 1fr;gap:40px;align-items:start}
.toc{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}
.toc a{display:block;padding:9px 4px;color:#51647b;font-weight:600;font-size:14px;border-bottom:1px solid #edf2f7}
.toc a:last-child{border-bottom:0}
.toc a:hover{color:var(--blue)}

.content-section{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px;margin-bottom:24px;box-shadow:var(--shadow-sm);scroll-margin-top:100px}
.content-section h2{font-size:clamp(26px,3vw,36px);line-height:1.15;margin:0 0 16px}
.content-section h3{font-size:21px;margin:28px 0 10px}
.content-section p{color:#40546b}
.content-section p+p{margin-top:10px}

/* Section header image (used on industries/projects sections) */
.section-image{
  width:calc(100% + 72px);margin:-36px -36px 24px;
  height:240px;object-fit:cover;display:block;
  border-radius:var(--radius) var(--radius) 0 0;
}

/* Project entries */
.project{border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin:14px 0;background:#fff;display:grid;grid-template-columns:1fr;gap:6px}
.project h3{margin:0 0 6px;font-size:19px}
.project p{margin:0;font-size:14.5px}
.label{font-weight:800;color:var(--navy)}

/* Client logo wall */
.client-wall{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-top:24px}
.client-logo{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  min-height:110px;padding:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  text-align:center;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s;
}
.client-logo:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.client-logo .lm{
  font-weight:900;font-size:22px;letter-spacing:-.02em;
  background:linear-gradient(135deg,var(--navy),var(--slate));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.client-logo img{max-height:64px;max-width:150px;width:auto;object-fit:contain;margin-bottom:4px}
.project h3{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.project h3 .plogo{width:52px;height:52px;object-fit:contain;flex-shrink:0;background:#fff;border:1px solid var(--line);border-radius:10px;padding:5px;box-shadow:var(--shadow-sm)}
.client-logo .ll{font-size:11px;color:#64748b;font-weight:600;letter-spacing:.04em;line-height:1.3}

/* Contact / forms */
.contact-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:stretch}
.contact-card{background:linear-gradient(135deg,#0a1627,#14324a);color:#fff;border-radius:var(--radius-lg);padding:36px;display:flex;flex-direction:column;gap:14px}
.contact-card h3{margin:0;font-size:22px;line-height:1.25}
.contact-card p{color:rgba(255,255,255,.8);margin:0}
.contact-card a{color:#9ff3ff;font-weight:700}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow-md)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
label{font-size:12px;font-weight:800;color:#24364a;text-transform:uppercase;letter-spacing:.04em;display:block}
input,select,textarea{width:100%;border:1px solid #cbd6e2;border-radius:10px;padding:12px 13px;margin-top:6px;background:#fbfdff;font-family:inherit;font-size:14px;color:var(--navy)}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(47,116,255,.35);border-color:var(--blue)}
textarea{min-height:150px;resize:vertical}
.success{display:none;margin-top:14px;background:#dcfce7;border:1px solid #86efac;color:#14532d;border-radius:10px;padding:14px;font-weight:700}

/* Footer */
.footer{background:#071323;color:rgba(255,255,255,.72);padding:42px 0 30px}
.footer-grid{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;align-items:flex-start}
.footer .brand strong{color:#fff}
.mini-links{display:flex;gap:16px;flex-wrap:wrap}
.mini-links a{color:rgba(255,255,255,.78);font-weight:600;font-size:14px}
.mini-links a:hover{color:#fff}

/* Notice strip */
.notice{background:#fff7ed;border-left:3px solid var(--amber);padding:16px 18px;border-radius:10px;color:#6b4315;font-size:14px}

/* ================================================================
   Products & Services specific
   ================================================================ */
.product-hero-media{margin-top:40px;display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:stretch}
.product-hero-media img{width:100%;height:360px;object-fit:cover;border-radius:var(--radius);box-shadow:0 24px 70px rgba(7,19,35,.22);background:#0b1728}
.product-hero-note{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;justify-content:flex-end;gap:10px}
.product-hero-note h3{font-size:24px;line-height:1.2;margin:0}
.product-hero-note p{margin:0;color:rgba(255,255,255,.8)}

.product-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:26px 0 32px}
.product-tile{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.product-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.product-tile img{width:100%;height:160px;object-fit:contain;background:#fff;padding:16px}
.product-tile strong{display:block;padding:14px 16px 4px;font-size:15px;color:var(--navy)}
.product-tile span{display:block;padding:0 16px 16px;color:#64748b;font-size:13px}

.service-block{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:center;margin:24px 0;padding:30px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow-sm)}
.service-block.reverse{grid-template-columns:1.1fr .9fr}
.service-block.reverse > img,.service-block.reverse > div:first-child{order:0}
.service-block > img{width:100%;height:340px;object-fit:cover;border-radius:10px;background:#fff}
.service-block > img.contain{object-fit:contain;padding:18px}
.service-block h3{font-size:24px;margin:0 0 12px;line-height:1.18}
.service-block p{color:#52657b;margin:0 0 10px}
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.spec-grid span,.support-pill{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;background:#eef5ff;color:#183354;font-size:12.5px;font-weight:700;padding:9px 12px;text-align:center}
.support-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

.component-strip{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:22px}
.component-strip img{width:100%;height:115px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px}

.visual-callout{margin:30px 0;padding:30px;border-radius:var(--radius);background:linear-gradient(135deg,#0b1728,#12324c);color:#fff;position:relative;overflow:hidden}
.visual-callout:after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(33,199,232,.3),transparent 65%);top:-60px;right:-60px;pointer-events:none}
.visual-callout h3{margin:0 0 10px;font-size:22px;line-height:1.25;position:relative;z-index:1}
.visual-callout p{margin:0;color:rgba(255,255,255,.78);position:relative;z-index:1}

/* ================================================================
   Responsive
   ================================================================ */
@media(max-width:980px){
  .nav-links{display:none;position:absolute;left:20px;right:20px;top:82px;background:#0b1728;border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:12px;flex-direction:column;align-items:stretch}
  .nav-links.open{display:flex}
  .menu{display:block}
  .section-head,.feature,.grid-2,.contact-layout,.content-layout,.product-hero-media,.service-block,.service-block.reverse{grid-template-columns:1fr}
  .grid-3,.grid-4,.product-gallery{grid-template-columns:1fr 1fr}
  .component-strip{grid-template-columns:repeat(3,1fr)}
  .hero{min-height:auto;padding:90px 0}
  .toc{position:static}
  .section-image{width:calc(100% + 72px)}
}
@media(max-width:640px){
  .container{width:min(100% - 28px,var(--max))}
  .grid-3,.grid-4,.product-gallery,.form-grid,.spec-grid{grid-template-columns:1fr}
  .brand>span:last-child{display:none}
  .section-head h2,.content-section h2{font-size:30px}
  .hero h1,.page-hero h1{font-size:38px}
  section{padding:64px 0}
  .content-section{padding:24px}
  .section-image{width:calc(100% + 48px);margin:-24px -24px 18px;height:180px}
  .service-block{padding:20px}
  .service-block > img{height:230px}
  .component-strip{grid-template-columns:repeat(2,1fr)}
}

.visuals-bg{position:relative;isolation:isolate;overflow:hidden}
.visuals-bg::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(11,15,20,.82),rgba(11,15,20,.92)),url('/assets/workshop-bg.jpg');background-size:cover;background-position:center;z-index:-1}

/* Subpage background: gradient + blueprint grid (matches home tile-section) */
body:has(.page-hero){
  background:
    linear-gradient(135deg,rgba(23,100,255,.05) 0%,rgba(220,234,255,.35) 40%,rgba(248,250,252,0) 100%),
    var(--paper);
}
body:has(.page-hero)::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.75;
  background-image:
    linear-gradient(rgba(23,100,255,.08) 1px,transparent 1px),
    linear-gradient(90deg,rgba(23,100,255,.08) 1px,transparent 1px);
  background-size:48px 48px,48px 48px;
  mask-image:radial-gradient(ellipse at top right,#000 0%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at top right,#000 0%,transparent 70%);
}
body:has(.page-hero)::after{
  content:"";position:fixed;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,155,255,.22),transparent 65%);
  top:-180px;right:-160px;pointer-events:none;filter:blur(20px);z-index:0;
}
body:has(.page-hero) > *{position:relative;z-index:1}