:root{
  --bg:#f7f9fb;
  --accent:#0077cc; /* tuned brand accent */
  --accent-2:#00a3ff;
  --muted:#475569;
  --card:#ffffff;
  --radius:12px;
  --container:1100px;
  --hero-1:#05263b;
  --hero-2:#0b4b6b;
  --header-height:72px;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial;
}
*{box-sizing:border-box}
html,body{height:100%;}
body{margin:0;background:var(--bg);color:#0f172a;line-height:1.6;-webkit-font-smoothing:antialiased;font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;}
html{scroll-behavior:smooth}

/* improve large-viewport hero scale */
@media (min-width:1100px){
  .hero-grid{grid-template-columns:1fr 480px}
  .hero h1{font-size:3.25rem}
  .hero .lead{font-size:1.15rem}
}

/* constrain hero text for readability */
.hero-grid > div:first-child{max-width:68ch}

.container{max-width:var(--container);margin:0 auto;padding:1rem}

.site-header{background:#fff;box-shadow:0 4px 18px rgba(2,6,23,.06);position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-height);transition:transform .28s cubic-bezier(.2,.9,.2,1),box-shadow .18s ease}
.site-header .container{display:flex;align-items:center;gap:1rem}
.brand{margin:0;font-size:1.125rem;text-decoration:none;color:var(--accent);font-weight:800}

.nav{margin-left:auto;display:flex;gap:.5rem;align-items:center}
.nav a{color:var(--muted);text-decoration:none;padding:.5rem .75rem;border-radius:8px;font-size:.95rem;font-weight:600;letter-spacing:.03em}
.nav a:hover, .nav a:focus{background:rgba(0,118,204,0.06);color:var(--accent);outline:none}
.nav-toggle{display:none;background:transparent;border:0;font-size:1.25rem}
.header-cta{margin-left:0.75rem}
.btn.small{padding:.35rem .6rem;font-size:.9rem;border-radius:8px}

/* ensure page content isn't hidden under the fixed header */
main{padding-top:calc(var(--header-height) + 0.5rem)}

/* Hero (refined) */
.hero{position:relative;padding:6rem 0 4rem;color: #fff;text-align:left;overflow:hidden}
.hero-inner{position:relative;z-index:3}
.hero{
  background: linear-gradient(120deg,var(--hero-1) 0%, rgba(11,75,107,0.95) 40%, rgba(250,250,250,0) 100%);
}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:2rem;align-items:center}
.hero h1{margin:.1rem 0 0;font-size:2.25rem;line-height:1.03;font-weight:800}
.hero .lead{opacity:0.95;margin:.75rem 0 1.25rem;color:rgba(255,255,255,0.92);font-size:1.05rem}
.hero .cta{display:flex;gap:.75rem}
.btn{background:var(--accent);color:white;padding:.75rem 1.1rem;border-radius:10px;border:0;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}
.btn:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(3,102,160,0.18)}
.btn.outline{background:transparent;color:white;border:1px solid rgba(255,255,255,0.18)}

.hero-visual .visual-block{width:100%;height:260px;background:linear-gradient(180deg,rgba(255,255,255,0.06),rgba(255,255,255,0.02));border-radius:16px;border:1px solid rgba(255,255,255,0.04);box-shadow:inset 0 1px 0 rgba(255,255,255,0.02)}
.hero-visual .visual-block{background:linear-gradient(180deg,rgba(255,255,255,0.06),rgba(255,255,255,0.02));border-radius:12px;border:1px solid rgba(255,255,255,0.04);height:280px;display:flex;align-items:center;justify-content:center}
.hero-visual .visual-block::after{content:"";width:84%;height:64%;background:linear-gradient(90deg,rgba(255,255,255,0.03),rgba(255,255,255,0.01));border-radius:8px}

/* Team cards: circular avatars and hover lift */
.section{padding:3rem 0}
.section.alt{background:#fff}
.grid{display:grid;gap:1rem}
.team-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));align-items:start}
.card{background:var(--card);padding:1.6rem;border-radius:16px;text-align:center;box-shadow:0 12px 30px rgba(2,6,23,.06);transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-8px);box-shadow:0 18px 40px rgba(2,6,23,.09)}
.card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 0.8rem;display:block;border:6px solid rgba(0,0,0,0.03)}
.card h3{margin:.5rem 0 0;font-size:1.05rem}
.card .role{color:var(--muted);font-size:.95rem;margin-top:.4rem}

/* Clients: uniform boxes, muted grayscale turning color on hover */
.clients-grid{grid-template-columns:repeat(auto-fit,minmax(220px,280px));justify-content:center;align-items:center}
.client-logo{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:.5rem;padding:1.5rem;background:#fff;border-radius:12px;transition:transform .14s ease,filter .14s ease;box-shadow:0 6px 18px rgba(2,6,23,.04)}
.client-logo img{display:block;width:200px;height:90px;object-fit:contain}
.client-logo:hover{transform:translateY(-6px)}
.client-name{margin-top:.5rem;font-size:.95rem;color:var(--muted);text-align:center;font-weight:700}

/* Form and buttons */
.form{display:grid;gap:.75rem;max-width:700px}
.form label{display:flex;flex-direction:column;font-size:.95rem;color:var(--muted)}
.form input,.form textarea{padding:.7rem;border-radius:10px;border:1px solid #e6eef8;background:#fff}
.form-actions{display:flex;gap:.5rem}
.btn.muted{background:transparent;color:var(--accent);border:1px solid rgba(0,163,255,0.12)}

/* Footer: columns */
.site-footer{padding:2rem 0;color:var(--muted);background:linear-gradient(180deg,#f8fafc,#ffffff)}
.footer-columns{display:grid;grid-template-columns:1fr 160px 220px;gap:1.5rem;align-items:start}
.footer-about strong{display:block;margin-bottom:.5rem;font-size:1rem}
.footer-about p{margin:0;color:var(--muted)}
.footer-links-col a{display:block;color:var(--muted);text-decoration:none;padding:.25rem 0}
.footer-contact p{margin:0}
.footer-copy{display:block;margin-top:1rem;color:var(--muted)}

/* small responsive tweaks */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr 320px}
  .footer-columns{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .nav{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .site-header .container{align-items:center}
  .hero h1{font-size:1.5rem}
  .hero{padding:4rem 0}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{order:2}
  .footer-columns{grid-template-columns:1fr}
  .client-logo img{width:160px;height:72px}
  .footer-columns{grid-template-columns:1fr;gap:1rem}
  .footer-copy{text-align:center}
  .header-cta{display:none}
  /* slightly smaller header on small screens */
  :root{--header-height:64px}
}

/* accessibility focus */
a:focus{outline:3px solid rgba(0,118,204,0.16);outline-offset:3px}

/* accessibility: visible focus for buttons */
.btn:focus{box-shadow:0 0 0 4px rgba(0,118,204,0.12)}

/* spinner inside send button */
.spinner{display:inline-block;width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,0.35);border-top-color:rgba(255,255,255,0.9);margin-right:.5rem;vertical-align:middle;opacity:0;transform:scale(.8);transition:opacity .12s ease,transform .12s ease}
.btn.loading .spinner{opacity:1;transform:scale(1);animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* disabled button */
.btn[disabled],.btn.muted[disabled]{opacity:.6;cursor:not-allowed}

/* inline form status */
.form-status{margin-top:1rem;padding:.75rem 1rem;border-radius:8px;font-size:.95rem;display:none}
.form-status.show{display:block}
.form-status.success{background:rgba(12,102,61,0.08);color:#084c26;border:1px solid rgba(12,102,61,0.12)}
.form-status.error{background:rgba(124,17,24,0.06);color:#7c1118;border:1px solid rgba(124,17,24,0.12)}