/* ============================================================
   Grease Trap Cleaning Dubai — clean hygiene / stainless theme
   ============================================================ */
:root{
  --bg:#f6f8fa;        /* page */
  --bg2:#eef2f5;       /* alt sections */
  --surface:#ffffff;   /* cards */
  --ink:#0f1b24;       /* headings */
  --body:#42525e;      /* body text */
  --muted:#6b7a86;     /* secondary */
  --line:#dbe3e9;      /* borders */
  --steel:#9fb0bd;     /* stainless grey */
  --brand:#0ea5a4;     /* hygiene teal */
  --brand-d:#0c8a89;   /* darker teal */
  --ok:#16a34a;        /* compliant green */
  --shadow:0 1px 2px rgba(15,27,36,.04),0 8px 24px rgba(15,27,36,.06);
  --shadow-lg:0 12px 40px rgba(15,27,36,.12);
  --r:14px;
  --maxw:1140px;
  --fh:'Space Grotesk',system-ui,sans-serif;
  --fb:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--fb);background:var(--bg);color:var(--body);line-height:1.6;font-size:16.5px;overflow-x:hidden}
h1,h2,h3,h4{font-family:var(--fh);color:var(--ink);line-height:1.12;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5.2vw,3.5rem)}
h2{font-size:clamp(1.6rem,3.6vw,2.4rem)}
h3{font-size:1.18rem}
p{color:var(--body)}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* progress bar */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand),var(--ok));z-index:120;transition:width .1s}

/* nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(246,248,250,.82);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.25s}
.nav.scrolled{background:rgba(255,255,255,.92);border-bottom-color:var(--line);box-shadow:0 4px 20px rgba(15,27,36,.05)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:13px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--fh);font-weight:700;font-size:1.08rem;color:var(--ink)}
.brand .mark{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff}
.brand .mark svg{width:18px;height:18px}
.nav-links{list-style:none;display:flex;align-items:center;gap:7px}
.nav-links a{padding:8px 12px;border-radius:9px;font-size:.93rem;font-weight:500;color:var(--body);transition:.18s;white-space:nowrap}
.nav-links a:hover{background:var(--bg2);color:var(--ink)}
.nav-links a.active{color:var(--brand-d)}
.nav-cta{background:var(--ink)!important;color:#fff!important}
.nav-cta:hover{background:var(--brand-d)!important}
.burger{display:none;background:none;border:0;font-size:1.5rem;color:var(--ink);cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 22px;border-radius:11px;font-family:var(--fh);font-weight:600;font-size:1rem;cursor:pointer;border:1px solid transparent;transition:.2s;will-change:transform}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(14,165,164,.32)}
.btn-primary:hover{background:var(--brand-d);box-shadow:0 10px 26px rgba(14,165,164,.4)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--steel);background:#fff}

/* hero */
.hero{position:relative;padding:64px 0 56px;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:
  radial-gradient(900px 380px at 80% -10%,rgba(14,165,164,.10),transparent 60%),
  radial-gradient(700px 320px at 0% 110%,rgba(22,163,74,.07),transparent 60%);
  z-index:-1}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--fh);font-weight:600;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--brand-d);background:rgba(14,165,164,.1);padding:6px 12px;border-radius:30px;margin-bottom:18px}
.hero h1{margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--brand-d)}
.hero p.lead{font-size:1.13rem;color:var(--muted);max-width:46ch;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:var(--shadow-lg)}
.hero-card h3{font-size:1.05rem;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.hc-row{display:flex;align-items:flex-start;gap:11px;padding:11px 0;border-bottom:1px solid var(--line)}
.hc-row:last-child{border-bottom:0}
.hc-row .ck{flex:0 0 22px;height:22px;border-radius:50%;background:rgba(22,163,74,.12);color:var(--ok);display:grid;place-items:center;font-size:.8rem;margin-top:2px}
.hc-row b{color:var(--ink);font-family:var(--fh)}
.hc-row span{font-size:.92rem;color:var(--muted)}

/* trust bar */
.trust{background:var(--ink);color:#cdd8e0}
.trust .wrap{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 38px;padding:18px 22px;text-align:center}
.trust div{display:flex;align-items:center;gap:9px;font-size:.92rem;font-weight:500}
.trust b{color:#fff;font-family:var(--fh)}
.trust .tdot{color:var(--brand)}

/* generic section */
.block{padding:72px 0}
.head{max-width:680px;margin-bottom:42px}
.head.center{margin-left:auto;margin-right:auto;text-align:center}
.head h2{margin-bottom:12px}
.head p{color:var(--muted);font-size:1.06rem}

/* page hero (inner pages) */
.page-hero{padding:54px 0 18px;border-bottom:1px solid var(--line)}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.breadcrumb a{color:var(--brand-d)}
.page-hero h1{margin-bottom:12px}
.page-hero p{color:var(--muted);font-size:1.1rem;max-width:60ch}

/* cards grid (services / uses) */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow);transition:.22s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--steel)}
.card .ico{width:46px;height:46px;border-radius:12px;background:rgba(14,165,164,.1);color:var(--brand-d);display:grid;place-items:center;font-size:1.3rem;margin-bottom:16px;font-family:var(--fh);font-weight:700}
.card h3{margin-bottom:8px}
.card p{font-size:.96rem;color:var(--muted)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{position:relative;padding-top:14px}
.step .num{width:38px;height:38px;border-radius:50%;background:var(--ink);color:#fff;font-family:var(--fh);font-weight:700;display:grid;place-items:center;margin-bottom:14px}
.step h3{margin-bottom:6px;font-size:1.05rem}
.step p{font-size:.93rem;color:var(--muted)}

/* split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}
.split ul{list-style:none;margin-top:18px}
.split li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.split li:last-child{border-bottom:0}
.split li .ck{flex:0 0 24px;height:24px;border-radius:50%;background:rgba(22,163,74,.12);color:var(--ok);display:grid;place-items:center;font-size:.85rem;margin-top:2px}
.split li b{color:var(--ink);font-family:var(--fh);display:block}
.split li span{font-size:.93rem;color:var(--muted)}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:var(--shadow)}

/* faq */
.faq{max-width:780px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:0;padding:18px 22px;font-family:var(--fh);font-weight:600;font-size:1.02rem;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-q:after{content:"+";color:var(--brand-d);font-size:1.4rem;transition:.25s}
.faq-item.open .faq-q:after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 18px;color:var(--muted);font-size:.97rem}

/* big cta */
.bigcta{background:linear-gradient(135deg,var(--ink),#16323e);border-radius:22px;padding:54px 32px;text-align:center;color:#fff;position:relative;overflow:hidden}
.bigcta:before{content:"";position:absolute;inset:0;background:radial-gradient(600px 240px at 80% 0%,rgba(14,165,164,.25),transparent 60%)}
.bigcta>*{position:relative}
.bigcta h2{color:#fff;margin-bottom:12px}
.bigcta p{color:#bcc9d2;max-width:52ch;margin:0 auto 24px}
.bigcta .eyebrow{background:rgba(255,255,255,.1);color:#7fe3e2}

/* contact form */
.cform{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.field{margin-bottom:15px}
.field label{display:block;font-size:.85rem;font-weight:600;color:var(--ink);margin-bottom:6px;font-family:var(--fh)}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-family:var(--fb);font-size:.97rem;color:var(--ink);background:var(--surface);transition:.18s}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,165,164,.14)}
.field textarea{min-height:96px;resize:vertical}
.hp{position:absolute;left:-9999px}
.form-status{margin-top:12px;font-size:.93rem;padding:10px 14px;border-radius:9px;display:none}
.form-status.ok{display:block;background:rgba(22,163,74,.1);color:var(--ok)}
.form-status.err{display:block;background:rgba(220,38,38,.08);color:#dc2626}
.info-item{padding:14px 0;border-bottom:1px solid var(--line)}
.info-item:last-child{border-bottom:0}
.info-item .k{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:3px}
.info-item .v{font-family:var(--fh);font-weight:600;color:var(--ink);font-size:1.05rem}
.info-item .v a{color:var(--brand-d)}

/* footer */
footer{background:var(--ink);color:#aab8c2;padding:54px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px;margin-bottom:34px}
.foot-brand .brand{color:#fff;margin-bottom:12px}
.foot-brand p{font-size:.92rem;color:#8b9aa4;max-width:34ch}
footer h4{color:#fff;font-size:.92rem;margin-bottom:14px}
footer ul{list-style:none}
footer li{margin-bottom:9px}
footer li a{font-size:.92rem;color:#9aa8b2;transition:.15s}
footer li a:hover{color:var(--brand)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:.85rem;color:#7d8c96}

/* floating whatsapp + mobile callbar */
.wa{position:fixed;right:18px;bottom:18px;width:54px;height:54px;border-radius:50%;background:#25d366;color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.45);z-index:90;transition:.2s}
.wa:hover{transform:scale(1.07)}
.wa svg{width:28px;height:28px}
.callbar{display:none}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media(max-width:920px){
  .hero .wrap{grid-template-columns:1fr;gap:32px}
  .grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split,.cform{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav-links{position:fixed;inset:62px 0 auto 0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:10px 16px 18px;transform:translateY(-130%);transition:.3s;box-shadow:var(--shadow-lg)}
  .nav-links.open{transform:none}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:13px 10px;border-bottom:1px solid var(--line)}
  .nav-cta{text-align:center;margin-top:6px}
  .burger{display:block}
  .grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .wa{bottom:70px}
  .callbar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:95}
  .callbar a{flex:1;text-align:center;padding:15px;font-family:var(--fh);font-weight:600;color:#fff}
  .callbar .c1{background:var(--ink)}
  .callbar .c2{background:#25d366}
  .block{padding:52px 0}
}