/* Base */
:root{--bg:#ffffff;--fg:#0f172a;--muted:#6b7280;--accent:#10b981;--accent-600:#059669;--border:#e5e7eb;--card:#f8fafc;--brand:#2563eb;--brand-600:#1d4ed8}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--fg);line-height:1.6}
img{max-width:100%;height:auto}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Top strip */
.top-strip{background:#0b1220;color:#cbd5e1;font-size:14px}
.top-strip .container{display:flex;justify-content:flex-end;gap:24px;padding:6px 20px}
.top-strip a{color:#cbd5e1;text-decoration:none}
.top-strip a:hover{color:#fff}

/* Header */
.site-header{position:sticky;top:0;z-index:40;background:#ffffffcc;backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--border)}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand-title{font-family:"Cal Sans", Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;font-weight:800;color:var(--brand);font-size:22px;letter-spacing:.2px;text-decoration:none}
.primary-nav{display:flex;align-items:center;gap:20px}
.primary-nav ul{display:flex;gap:16px;list-style:none;margin:0;padding:0}
.primary-nav a{color:var(--fg);text-decoration:none;font-weight:500;padding:10px 8px;border-radius:8px}
.primary-nav a.active,.primary-nav a:hover{color:var(--accent-600)}
.nav-toggle{display:none;background:none;border:1px solid var(--border);padding:8px 10px;border-radius:8px}
.logo img{display:block}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border-radius:10px;border:1px solid transparent;font-weight:600;text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-600)}
.btn-outline{background:#fff;border-color:var(--border);color:var(--fg)}
.btn-outline:hover{border-color:var(--fg)}

/* Hero */
.hero{padding:80px 0;background:linear-gradient(180deg,#f0f7ff 0%,#ffffff 100%);position:relative;overflow:hidden}
.hero::before,.hero::after{content:"";position:absolute;inset:auto auto -40px -40px;width:260px;height:260px;background:radial-gradient(120px 120px at 50% 50%, rgba(37,99,235,.18), rgba(37,99,235,0));border-radius:50%}
.hero::after{inset:-60px -60px auto auto}
.hero-vectors{display:flex;gap:16px;flex-wrap:wrap;margin-top:16px}
.hero-vectors .chip{background:#eef2ff;border:1px solid #e5e7eb;padding:8px 12px;border-radius:999px;font-weight:600;color:#1e40af}
.hero h1{font-size: clamp(28px, 4vw, 48px);line-height:1.15;margin:0 0 12px}
.hero p{color:var(--muted);max-width:720px}
.hero-cta{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}

/* Sections */
.section{padding:64px 0}
.section h2{font-size: clamp(22px, 3vw, 32px);margin:0 0 8px}
.section .sub{color:var(--muted);margin:0 0 24px}

/* Grids */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px;box-shadow:0 1px 2px rgba(0,0,0,0.04)}
.card h3{margin:4px 0 8px}
.card p{margin:0;color:var(--muted)}
.card:hover{transform:translateY(-2px);transition:transform .2s ease}

/* Testimonials */
.testimonials{overflow:hidden}
.testimonial{background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px}
.testimonial .who{display:flex;gap:12px;align-items:center;margin-top:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:#e2e8f0}

/* Forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.input, select, textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:10px;font:inherit}
label{font-weight:600;margin-bottom:6px;display:inline-block}
.field{margin-bottom:14px}
.alert{padding:10px 12px;border-radius:10px;border:1px solid}
.alert.success{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}
.alert.error{background:#fef2f2;border-color:#fecaca;color:#991b1b}

/* Footer */
.site-footer{border-top:1px solid var(--border);padding:32px 0;margin-top:40px;background:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px}
.footer-grid ul{list-style:none;margin:0;padding:0}
.footer-grid a{text-decoration:none;color:var(--muted)}
.footer-grid a:hover{color:var(--fg)}
.muted{color:var(--muted)}

/* WhatsApp Floating */
.whatsapp-float{position:fixed;right:16px;bottom:16px;z-index:50;display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;background:#25D366;color:#fff;border-radius:50%;box-shadow:0 8px 20px rgba(0,0,0,0.15)}
.whatsapp-float:hover{background:#1fb357}

/* Responsive */
@media (max-width: 900px){
  .grid-3{grid-template-columns:1fr} /* stack services & why choose us vertically */
  .grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .primary-nav{position:fixed;inset:64px 0 auto 0;background:#fff;border-bottom:1px solid var(--border);padding:12px 20px;display:none}
  .primary-nav.open{display:flex;justify-content:space-between}
  .primary-nav ul{flex-direction:column}
  .nav-toggle{display:inline-block}
  /* Testimonials swipe style */
  .testimonials .grid-3{display:flex;overflow-x:auto;gap:12px;scroll-snap-type:x mandatory;padding-bottom:8px}
  .testimonials .testimonial{min-width:80%;scroll-snap-align:start}
}