/* XYM Innovative Air Control - Brand-driven design system
   Palette derived from logo: red #C0392B, navy #1F3A8A, charcoal #1F2937, cream #FBF9F5 */
:root{
  --brand-red:#C0392B;
  --brand-red-dark:#8E2A20;
  --brand-navy:#1E3A8A;
  --brand-navy-dark:#152864;
  --ink:#0F172A;
  --muted:#5B6472;
  --line:#E5E7EB;
  --bg:#FFFFFF;
  --soft:#F6F7FB;
  --cream:#FBF9F5;
  --radius:14px;
  --shadow:0 10px 30px rgba(15,23,42,.08);
  --shadow-lg:0 20px 50px rgba(15,23,42,.14);
  --container:1200px;
  --font-head:"Barlow Condensed","Oswald","Segoe UI",sans-serif;
  --font-body:"Inter","Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-navy);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-red)}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;line-height:1.15;letter-spacing:.5px;color:var(--ink)}
h1{font-size:clamp(2.2rem,5vw,4rem);text-transform:uppercase}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem);text-transform:uppercase}
h3{font-size:1.3rem}
p{color:var(--muted)}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:90px 0}
.section.tight{padding:60px 0}
.lead{font-size:1.1rem;color:var(--muted);max-width:760px;margin:14px auto 0}
.center{text-align:center}
.grid{display:grid;gap:26px}
.grid.g-2{grid-template-columns:repeat(2,1fr)}
.grid.g-3{grid-template-columns:repeat(3,1fr)}
.grid.g-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid.g-3,.grid.g-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.grid.g-2,.grid.g-3,.grid.g-4{grid-template-columns:1fr}}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:8px;font-weight:600;font-size:.95rem;letter-spacing:.3px;transition:all .25s;border:2px solid transparent;cursor:pointer}
.btn-primary{background:var(--brand-red);color:#fff}
.btn-primary:hover{background:var(--brand-red-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-secondary{background:transparent;color:#fff;border-color:#fff}
.btn-secondary:hover{background:#fff;color:var(--brand-navy)}
.btn-dark{background:var(--brand-navy);color:#fff}
.btn-dark:hover{background:var(--brand-navy-dark);color:#fff;transform:translateY(-2px)}
.btn-ghost{color:var(--brand-navy);border-color:var(--brand-navy)}
.btn-ghost:hover{background:var(--brand-navy);color:#fff}

/* Top info bar */
.topbar{background:var(--brand-navy);color:#e6ecff;font-size:.85rem;padding:9px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.topbar .info{display:flex;gap:22px;flex-wrap:wrap;align-items:center}
.topbar .info a{color:#e6ecff;display:inline-flex;align-items:center;gap:6px}
.topbar .info a:hover{color:#fff}
.topbar .socials{display:flex;gap:12px}
.topbar .socials a{color:#e6ecff;width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}
.topbar .socials a:hover{background:var(--brand-red);color:#fff;transform:translateY(-2px)}
.icon{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.98);backdrop-filter:saturate(150%) blur(8px);border-bottom:1px solid var(--line);transition:box-shadow .3s}
.site-header.scrolled{box-shadow:0 6px 20px rgba(0,0,0,.06)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:20px}
.logo{display:flex;align-items:center;gap:12px}
.logo img{height:52px;width:auto;border-radius:12px;background:#fff;padding:4px 8px;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.logo .brand-text{display:none}
.nav-menu{display:flex;gap:6px;align-items:center;list-style:none;margin:0 auto}
.nav-menu a{position:relative;padding:10px 14px;font-weight:500;color:var(--ink);font-size:.95rem}
.nav-menu a::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--brand-red);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1)}
.nav-menu a.active{color:var(--brand-red)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-cta .btn{padding:10px 18px;font-size:.9rem}
.hamburger{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;align-items:center}
.hamburger span{width:24px;height:2px;background:var(--ink);transition:all .3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:960px){
  .nav-menu{position:fixed;top:0;right:-100%;height:100vh;width:80%;max-width:340px;background:#fff;flex-direction:column;align-items:flex-start;padding:100px 24px 24px;gap:6px;box-shadow:var(--shadow-lg);transition:right .35s}
  .nav-menu.open{right:0}
  .nav-menu a{width:100%;padding:14px 10px;border-bottom:1px solid var(--line);font-size:1.05rem}
  .nav-menu a::after{display:none}
  .hamburger{display:flex}
  .nav-cta .btn{display:none}
}

/* Hero / banners */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;color:#fff;background:linear-gradient(135deg,var(--brand-navy-dark),var(--brand-navy) 60%,var(--brand-red))}
.hero-slides{position:absolute;inset:0}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease-in-out;background-size:cover;background-position:center;transform:scale(1.05)}
.hero-slide.active{opacity:1;animation:kenburns 8s ease-out forwards}
@keyframes kenburns{from{transform:scale(1.05)}to{transform:scale(1.15)}}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,23,42,.75),rgba(30,58,138,.55) 60%,rgba(192,57,43,.45))}
.hero .container{position:relative;z-index:2;padding:80px 20px}
.hero h1{color:#fff;text-shadow:0 4px 24px rgba(0,0,0,.35);max-width:900px}
.hero .sub{font-size:clamp(1.05rem,1.6vw,1.35rem);color:#f1f5ff;max-width:720px;margin:18px 0 32px;text-shadow:0 2px 12px rgba(0,0,0,.3)}
.hero .cta-row{display:flex;gap:14px;flex-wrap:wrap}
.hero .trust{margin-top:44px;display:flex;gap:28px;flex-wrap:wrap;color:#dbe4ff;font-size:.9rem}
.hero .trust span{display:inline-flex;align-items:center;gap:8px}
.slider-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:3}
.slider-dots button{width:36px;height:4px;border:0;background:rgba(255,255,255,.4);cursor:pointer;border-radius:2px;transition:background .3s}
.slider-dots button.active{background:#fff}

/* Page banner */
.pagebanner{position:relative;min-height:420px;display:flex;align-items:center;color:#fff;background:var(--brand-navy)}
.pagebanner .bg{position:absolute;inset:0;background-size:cover;background-position:center}
.pagebanner .ov{position:absolute;inset:0;background:linear-gradient(120deg,rgba(15,23,42,.75),rgba(30,58,138,.55))}
.pagebanner .container{position:relative;z-index:2;padding:90px 20px}
.pagebanner h1{color:#fff;text-shadow:0 4px 20px rgba(0,0,0,.3)}
.pagebanner .sub{color:#e6ecff;font-size:1.1rem;margin-top:14px;max-width:720px}
.breadcrumb{margin-top:22px;font-size:.9rem;color:#cfd8ff}
.breadcrumb a{color:#fff}

/* Cards */
.card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card .thumb{aspect-ratio:16/10;background:linear-gradient(135deg,var(--brand-navy),var(--brand-red));background-size:cover;background-position:center;position:relative}
.card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.25))}
.card .body{padding:24px;flex:1;display:flex;flex-direction:column;gap:10px}
.card h3{color:var(--ink)}
.card .body p{font-size:.95rem}
.card .body .link{margin-top:auto;color:var(--brand-red);font-weight:600;font-size:.9rem;display:inline-flex;align-items:center;gap:6px}
.card .body .link:hover{gap:10px}

/* Sections */
.section-head{text-align:center;margin-bottom:50px}
.section-head h2{position:relative;display:inline-block}
.section-head h2::after{content:"";display:block;width:64px;height:4px;background:var(--brand-red);margin:14px auto 0;border-radius:2px}
.section.alt{background:var(--soft)}
.section.dark{background:var(--brand-navy);color:#fff}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark p{color:#cfd8ff}

/* Feature strip */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature{padding:26px;background:#fff;border-radius:var(--radius);border:1px solid var(--line);transition:all .25s}
.feature:hover{border-color:var(--brand-red);transform:translateY(-4px);box-shadow:var(--shadow)}
.feature .ic{width:48px;height:48px;background:linear-gradient(135deg,var(--brand-red),var(--brand-navy));color:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.feature .ic svg{width:24px;height:24px;stroke:#fff;fill:none;stroke-width:2}
.feature h3{font-size:1.1rem;margin-bottom:8px}
.feature p{font-size:.9rem}
@media(max-width:900px){.features{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.features{grid-template-columns:1fr}}

/* Split about */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split .img{aspect-ratio:4/5;border-radius:var(--radius);background-size:cover;background-position:center;background-color:var(--brand-navy);box-shadow:var(--shadow-lg);position:relative}
.split .img::before{content:"";position:absolute;inset:20px -20px -20px 20px;border:3px solid var(--brand-red);border-radius:var(--radius);z-index:-1}
.split h2{margin-bottom:14px}
.split .list{margin-top:20px;list-style:none;display:grid;gap:10px}
.split .list li{display:flex;gap:10px;align-items:flex-start;color:var(--ink);font-weight:500}
.split .list li::before{content:"";width:20px;height:20px;background:var(--brand-red);mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'><polyline points='20 6 9 17 4 12'/></svg>") no-repeat center/contain;-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'><polyline points='20 6 9 17 4 12'/></svg>") no-repeat center/contain;flex:none;margin-top:3px}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:40px}.split .img{aspect-ratio:16/10}}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat .num{font-family:var(--font-head);font-size:3rem;color:var(--brand-red);font-weight:700}
.stat .lbl{color:#cfd8ff;text-transform:uppercase;letter-spacing:1px;font-size:.85rem}
@media(max-width:700px){.stats{grid-template-columns:repeat(2,1fr)}}

/* CTA band */
.ctaband{background:linear-gradient(120deg,var(--brand-navy),var(--brand-red));color:#fff;padding:70px 0;text-align:center;position:relative;overflow:hidden}
.ctaband h2{color:#fff}
.ctaband p{color:#f1f5ff;margin:14px auto 26px;max-width:640px}
.ctaband .btn-primary{background:#fff;color:var(--brand-navy)}
.ctaband .btn-primary:hover{background:var(--ink);color:#fff}

/* Footer */
.site-footer{background:#0B1220;color:#c8d0dc;padding:70px 0 0}
.site-footer h4{color:#fff;font-size:1.05rem;margin-bottom:18px;text-transform:uppercase;letter-spacing:1px;font-family:var(--font-head)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.site-footer p,.site-footer li{font-size:.92rem;color:#9ca7b7}
.site-footer ul{list-style:none;display:grid;gap:10px}
.site-footer a{color:#c8d0dc}
.site-footer a:hover{color:#fff}
.footer-brand img{height:56px;margin-bottom:16px;border-radius:12px;background:#fff;padding:6px 10px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact svg{stroke:var(--brand-red);margin-top:3px;flex:none}
.footer-socials{display:flex;gap:10px;margin-top:14px}
.footer-socials a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.06);display:inline-flex;align-items:center;justify-content:center;color:#fff;transition:all .25s}
.footer-socials a:hover{background:var(--brand-red);transform:translateY(-3px)}
.copybar{margin-top:50px;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.85rem;color:#7d8898}
.copybar a{color:#c8d0dc;margin-left:16px}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* WhatsApp float / back to top */
.wa-float,.top-float{position:fixed;right:20px;width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);z-index:60;transition:transform .25s,opacity .25s;cursor:pointer;border:0}
.wa-float{bottom:24px;background:#25D366;color:#fff}
.wa-float:hover{transform:scale(1.08)}
.top-float{bottom:88px;background:var(--brand-navy);color:#fff;opacity:0;pointer-events:none}
.top-float.show{opacity:1;pointer-events:auto}
.wa-float svg,.top-float svg{width:26px;height:26px;fill:currentColor}

/* Cookie banner */
.cookie{position:fixed;left:20px;right:20px;bottom:20px;max-width:520px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:20px 22px;z-index:70;display:none;border:1px solid var(--line)}
.cookie.show{display:block}
.cookie p{font-size:.9rem;color:var(--ink);margin-bottom:12px}
.cookie .row{display:flex;gap:10px}
.cookie button{padding:9px 16px;font-size:.85rem;border-radius:6px;border:0;cursor:pointer;font-weight:600}
.cookie .accept{background:var(--brand-red);color:#fff}
.cookie .decline{background:var(--soft);color:var(--ink)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-info{background:var(--brand-navy);color:#fff;padding:36px;border-radius:var(--radius)}
.contact-info h3{color:#fff;margin-bottom:20px}
.contact-info ul{list-style:none;display:grid;gap:18px;margin-top:20px}
.contact-info li{display:flex;gap:14px;align-items:flex-start}
.contact-info .ic{width:40px;height:40px;background:rgba(255,255,255,.08);border-radius:10px;display:flex;align-items:center;justify-content:center;flex:none}
.contact-info .ic svg{stroke:#fff}
.contact-info a{color:#e6ecff}
.contact-info a:hover{color:#fff}
.form{background:#fff;padding:36px;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line)}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
@media(max-width:600px){.form .row{grid-template-columns:1fr}}
.form label{display:block;font-size:.85rem;font-weight:600;color:var(--ink);margin-bottom:6px}
.form input,.form textarea,.form select{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:8px;font-family:inherit;font-size:.95rem;background:#fff;transition:border-color .2s}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--brand-red)}
.form textarea{min-height:140px;resize:vertical}
.form .field{margin-bottom:16px}
.form .msg{margin-top:14px;padding:10px 14px;border-radius:8px;font-size:.9rem;display:none}
.form .msg.ok{display:block;background:#e6fbee;color:#0a6b2a}
.form .msg.err{display:block;background:#fde8e6;color:#8e1a10}

/* Map */
.map{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);margin-top:40px}
.map iframe{width:100%;height:420px;border:0;display:block}

/* FAQ */
.faq{max-width:820px;margin:0 auto;display:grid;gap:14px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 22px;transition:box-shadow .2s}
.faq details[open]{box-shadow:var(--shadow);border-color:var(--brand-red)}
.faq summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--brand-red);transition:transform .3s}
.faq details[open] summary::after{content:"−"}
.faq p{margin-top:10px;font-size:.95rem}

/* Testimonials */
.tcard{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);position:relative;border-top:4px solid var(--brand-red)}
.tcard .quote{font-size:1.02rem;color:var(--ink);font-style:italic;line-height:1.7}
.tcard .who{margin-top:18px;display:flex;align-items:center;gap:14px}
.tcard .avatar{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--brand-navy),var(--brand-red));background-size:cover;background-position:center;flex:none}
.tcard .who .n{font-weight:700;color:var(--ink)}
.tcard .who .r{font-size:.85rem;color:var(--muted)}

/* Gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gallery .tile{aspect-ratio:4/3;border-radius:var(--radius);background-size:cover;background-position:center;background-color:var(--brand-navy);box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform .3s}
.gallery .tile:hover{transform:scale(1.02)}
.gallery .tile::after{content:attr(data-label);position:absolute;left:0;right:0;bottom:0;padding:14px 18px;background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff;font-weight:600;font-size:.95rem}
@media(max-width:900px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.gallery{grid-template-columns:1fr}}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* Legal / prose */
.prose{max-width:820px;margin:0 auto}
.prose h2{margin-top:36px;margin-bottom:14px;font-size:1.5rem}
.prose h3{margin-top:24px;margin-bottom:8px}
.prose p,.prose li{color:var(--ink);margin-bottom:12px}
.prose ul{padding-left:22px}

/* Blog list */
.postmeta{font-size:.82rem;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}