/* Royal Airconditioning - Design System */
:root{
  --brand-primary:#0a4d8c;      /* deep blue from logo */
  --brand-secondary:#1976d2;    /* mid blue */
  --brand-accent:#00bcd4;       /* cool cyan (cool air) */
  --brand-dark:#0b2540;
  --brand-light:#eaf4fb;
  --text:#1a2333;
  --muted:#5b6b80;
  --bg:#ffffff;
  --surface:#f6f9fc;
  --border:#e3ecf3;
  --radius:14px;
  --shadow-sm:0 2px 8px rgba(10,40,80,.08);
  --shadow-md:0 10px 30px rgba(10,40,80,.12);
  --font-heading:"Poppins","Segoe UI",system-ui,sans-serif;
  --font-body:"Inter","Segoe UI",system-ui,sans-serif;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--brand-secondary);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-primary)}
h1,h2,h3,h4{font-family:var(--font-heading);color:var(--brand-dark);line-height:1.2;font-weight:700}
h1{font-size:clamp(2rem,4.5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:.75rem}
h3{font-size:1.25rem;margin-bottom:.5rem}
p{color:var(--muted)}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
section{padding:80px 0}
.section-lead{max-width:720px;color:var(--muted);font-size:1.05rem;margin-bottom:3rem}

/* Logo */
.logo,.nav-brand img,.footer-brand img,.site-logo{
  border-radius:16px;background:#fff;padding:6px 10px;
  box-shadow:0 2px 8px rgba(0,0,0,.08);height:56px;width:auto;
}
.site-header.scrolled .logo{border-radius:12px;height:48px}
@media(max-width:640px){.logo{height:44px;border-radius:12px;padding:4px 8px}}

/* Top info bar */
.topbar{background:var(--brand-dark);color:#dfe9f2;font-size:.85rem;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.topbar-left,.topbar-right{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.topbar a{color:#dfe9f2;display:inline-flex;align-items:center;gap:6px}
.topbar a:hover{color:var(--brand-accent)}
.topbar svg{width:14px;height:14px}
.socials{display:flex;gap:10px}
.socials a{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,.08);transition:all .2s}
.socials a:hover{background:var(--brand-accent);color:#fff;transform:translateY(-2px)}
.socials svg{width:14px;height:14px}
@media(max-width:640px){.topbar{font-size:.78rem}.topbar-left{gap:12px}}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:transparent;transition:all .3s}
.site-header.scrolled{background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.08)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:24px}
.main-nav{display:flex;gap:6px;align-items:center;justify-content:center;flex:1}
.main-nav a{color:var(--brand-dark);font-weight:500;padding:10px 16px;border-radius:8px;position:relative;font-size:.95rem}
.site-header:not(.scrolled) .main-nav a{color:#fff;text-shadow:0 1px 4px rgba(0,0,0,.4)}
.main-nav a:hover,.main-nav a.active{color:var(--brand-accent)}
.main-nav a.active::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;background:var(--brand-accent);border-radius:2px}
.nav-cta{background:var(--brand-accent);color:#fff !important;padding:10px 20px !important;border-radius:8px}
.nav-cta:hover{background:var(--brand-primary);color:#fff !important}
.hamburger{display:none;background:none;border:0;cursor:pointer;width:40px;height:40px;flex-direction:column;justify-content:center;gap:5px;padding:8px}
.hamburger span{display:block;height:2px;background:var(--brand-dark);border-radius:2px;transition:all .3s}
.site-header:not(.scrolled) .hamburger span{background:#fff}
.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){
  .hamburger{display:flex}
  .main-nav{position:fixed;top:0;right:-100%;width:min(320px,80%);height:100vh;background:#fff;flex-direction:column;justify-content:flex-start;padding:80px 24px 24px;gap:4px;box-shadow:-4px 0 20px rgba(0,0,0,.15);transition:right .3s;align-items:stretch}
  .main-nav.open{right:0}
  .main-nav a{color:var(--brand-dark) !important;text-shadow:none !important;padding:14px 16px;border-bottom:1px solid var(--border);border-radius:0}
  .nav-cta{margin-top:12px;text-align:center;border-radius:8px !important}
}

/* Banner (hero + page headers) */
.banner{position:relative;min-height:420px;display:flex;align-items:center;color:#fff;background:var(--brand-primary);overflow:hidden;margin-top:-70px;padding-top:70px}
.banner .bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:0}
.banner .bg::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,37,64,.75),rgba(10,77,140,.55) 60%,rgba(0,188,212,.35))}
.banner .container{position:relative;z-index:1;padding-top:60px;padding-bottom:60px}
.banner h1{color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.4);margin-bottom:1rem}
.banner p.lead{color:#e6f2fb;font-size:1.15rem;max-width:640px;text-shadow:0 1px 6px rgba(0,0,0,.4)}
.breadcrumb{color:#cfe4f4;font-size:.9rem;margin-bottom:1rem}
.breadcrumb a{color:#fff}
.hero-cta{margin-top:1.8rem;display:flex;gap:12px;flex-wrap:wrap}

/* Hero home - slider */
.hero-home{min-height:640px}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease;background-size:cover;background-position:center;transform:scale(1.05);animation:kenburns 12s ease-in-out infinite alternate}
.hero-slide.active{opacity:1;z-index:1}
@keyframes kenburns{from{transform:scale(1.05)}to{transform:scale(1.15)}}
.hero-home .bg::after{background:linear-gradient(120deg,rgba(10,37,64,.7),rgba(10,77,140,.5),rgba(0,188,212,.3))}
.hero-content{position:relative;z-index:2}
.slider-dots{position:absolute;bottom:30px;left:0;right:0;display:flex;gap:8px;justify-content:center;z-index:2}
.slider-dots button{width:36px;height:4px;border-radius:2px;background:rgba(255,255,255,.4);border:0;cursor:pointer;transition:all .3s}
.slider-dots button.active{background:var(--brand-accent);width:56px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:8px;font-weight:600;transition:all .2s;border:0;cursor:pointer;font-size:.95rem}
.btn-primary{background:var(--brand-accent);color:#fff}
.btn-primary:hover{background:var(--brand-primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;color:#fff;border:2px solid #fff}
.btn-outline:hover{background:#fff;color:var(--brand-primary)}
.btn-secondary{background:var(--brand-primary);color:#fff}
.btn-secondary:hover{background:var(--brand-dark);color:#fff}

/* Cards */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid-3,.grid-4,.grid-2{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .3s;box-shadow:var(--shadow-sm)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-accent)}
.card-img{aspect-ratio:16/10;background:linear-gradient(135deg,var(--brand-light),#cfe4f4);background-size:cover;background-position:center}
.card-body{padding:22px}
.card h3{color:var(--brand-dark)}
.card p{font-size:.95rem;margin:.5rem 0 1rem}
.card .btn-link{color:var(--brand-secondary);font-weight:600;font-size:.9rem}

/* Feature blocks */
.feature{padding:26px;background:var(--surface);border-radius:var(--radius);border-left:4px solid var(--brand-accent)}
.feature h3{margin-bottom:.4rem}
.feature .num{font-size:2rem;font-weight:800;color:var(--brand-accent);font-family:var(--font-heading)}

/* About split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr}}
.split .image{aspect-ratio:4/3;border-radius:var(--radius);background:linear-gradient(135deg,var(--brand-light),#b8ddf0);background-size:cover;background-position:center;box-shadow:var(--shadow-md)}

/* Stats */
.stats{background:var(--brand-dark);color:#fff;padding:60px 0}
.stats .grid{grid-template-columns:repeat(4,1fr);text-align:center}
@media(max-width:640px){.stats .grid{grid-template-columns:repeat(2,1fr)}}
.stat .num{font-size:2.6rem;font-weight:800;color:var(--brand-accent);font-family:var(--font-heading);display:block}
.stat .label{color:#cfe4f4;font-size:.95rem}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--brand-primary),var(--brand-accent));color:#fff;padding:70px 0;text-align:center;position:relative;overflow:hidden}
.cta-band h2{color:#fff}
.cta-band p{color:#e6f2fb;max-width:640px;margin:1rem auto 2rem}
.cta-band .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.2}

/* Testimonials */
.testimonial{background:#fff;padding:28px;border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--border)}
.testimonial .quote{font-size:1rem;color:var(--text);margin-bottom:1rem;font-style:italic}
.testimonial .who{display:flex;align-items:center;gap:12px}
.avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--brand-primary),var(--brand-accent));background-size:cover;background-position:center}
.who-name{font-weight:600;color:var(--brand-dark)}
.who-role{font-size:.85rem;color:var(--muted)}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;text-align:left;padding:18px 22px;background:none;border:0;cursor:pointer;font-weight:600;color:var(--brand-dark);font-size:1rem;display:flex;justify-content:space-between;align-items:center;font-family:inherit}
.faq-q::after{content:"+";font-size:1.4rem;color:var(--brand-accent);transition:transform .2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:all .3s;color:var(--muted)}
.faq-item.open .faq-a{padding:0 22px 20px;max-height:400px}

/* Forms */
.form-row{margin-bottom:16px}
.form-row label{display:block;font-weight:500;margin-bottom:6px;color:var(--brand-dark);font-size:.9rem}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:8px;font:inherit;background:#fff;transition:border .2s}
.form-row input:focus,.form-row textarea:focus{outline:0;border-color:var(--brand-accent);box-shadow:0 0 0 3px rgba(0,188,212,.15)}
.form-row textarea{min-height:140px;resize:vertical}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}

/* Contact grid */
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr}}
.contact-info{background:var(--brand-dark);color:#fff;padding:34px;border-radius:var(--radius)}
.contact-info h3{color:#fff}
.contact-info .item{display:flex;gap:14px;margin:18px 0;align-items:flex-start}
.contact-info .item svg{width:20px;height:20px;color:var(--brand-accent);flex-shrink:0;margin-top:3px}
.contact-info a{color:#e6f2fb}
.contact-info a:hover{color:var(--brand-accent)}

/* Footer */
.site-footer{background:var(--brand-dark);color:#cfe0ee;padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:40px}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:540px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;margin-bottom:18px;font-size:1rem;text-transform:uppercase;letter-spacing:.5px}
.site-footer ul{list-style:none}
.site-footer li{margin:8px 0}
.site-footer a{color:#cfe0ee;font-size:.92rem}
.site-footer a:hover{color:var(--brand-accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.85rem}
.footer-brand p{color:#a9bfd1;font-size:.92rem;margin-top:14px}

/* Floating buttons */
.float-wa,.float-top{position:fixed;right:22px;width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);z-index:90;transition:all .3s;border:0;cursor:pointer}
.float-wa{bottom:22px;background:#25d366;color:#fff}
.float-wa:hover{transform:scale(1.08)}
.float-top{bottom:86px;background:var(--brand-primary);color:#fff;opacity:0;pointer-events:none}
.float-top.visible{opacity:1;pointer-events:auto}
.float-top:hover{background:var(--brand-dark)}
.float-wa svg,.float-top svg{width:24px;height:24px}

/* Cookie */
.cookie{position:fixed;bottom:22px;left:22px;right:100px;max-width:520px;background:#fff;padding:18px 22px;border-radius:var(--radius);box-shadow:0 10px 40px rgba(0,0,0,.2);z-index:95;display:none;border-left:4px solid var(--brand-accent)}
.cookie.show{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.cookie p{font-size:.9rem;margin:0;flex:1;min-width:220px}
@media(max-width:640px){.cookie{left:12px;right:12px;bottom:12px}}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(20px);transition:all .7s ease}
.reveal.visible{opacity:1;transform:none}

/* Utility */
.text-center{text-align:center}
.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}
.bg-surface{background:var(--surface)}
.badge{display:inline-block;background:var(--brand-light);color:var(--brand-primary);padding:4px 12px;border-radius:20px;font-size:.8rem;font-weight:600;margin-bottom:12px}

/* Placeholder image styling - CSS gradients so pages look complete even without user images */
[data-img]{background:linear-gradient(135deg,var(--brand-primary),var(--brand-accent));background-size:cover;background-position:center;position:relative}
[data-img]::before{content:attr(data-img-label);position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.35);font-size:.75rem;letter-spacing:.5px;text-transform:uppercase;pointer-events:none;font-family:var(--font-heading);text-align:center;padding:8px}