:root{
--bg:#f8fafc; /* very light slate */
--fg:#1e293b; /* dark gray text */
--muted:#475569; /* slate-600 */
--brand:#2563eb; /* bright royal blue */
--card:#ffffff; /* white card background */
--accent:#3b82f6; /* blue accent */
--chip:#e2e8f0; /* pale gray chip */
}
*{box-sizing:border-box;transition:all .25s ease-in-out}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;color:var(--brand)}
.container{max-width:1100px;margin:0 auto;padding:24px}
header{position:sticky;top:0;background:rgba(255,255,255,0.9);backdrop-filter:saturate(150%) blur(8px);z-index:10;border-bottom:1px solid #cbd5e1}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.3px;color:var(--brand)}
.brand .logo{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--accent));display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 4px 10px rgba(37,99,235,0.3)}
.nav a{padding:8px 12px;border-radius:10px;color:var(--fg)}
.nav .links a:hover{background:var(--chip);color:var(--brand)}
h1,h2,h3{line-height:1.2;margin:0 0 12px;color:var(--fg)}
section{padding:56px 0;border-bottom:1px solid #e2e8f0}
.hero{display:grid;grid-template-columns:1.3fr .8fr;gap:24px;align-items:center}
.badge{display:inline-block;padding:6px 10px;border-radius:999px;background:var(--chip);color:var(--muted);font-size:12.5px;border:1px solid #cbd5e1}
.card{background:var(--card);border:1px solid #e2e8f0;border-radius:16px;padding:18px;box-shadow:0 8px 20px rgba(0,0,0,0.05)}
.grid{display:grid;gap:18px}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.kpi{display:flex;gap:12px;align-items:center}
.kpi .dot{width:10px;height:10px;border-radius:50%;background:var(--brand)}
ul{margin:8px 0 0 18px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{background:var(--chip);border:1px solid #cbd5e1;padding:6px 10px;border-radius:999px;color:var(--muted);font-size:13px}
.chip:hover{background:var(--accent);color:white}
.footer{display:grid;gap:16px}
.contact{display:grid;gap:6px}
.btn{display:inline-block;padding:12px 16px;border-radius:12px;border:none;background:linear-gradient(90deg,var(--brand),var(--accent));color:#fff;font-weight:500;box-shadow:0 4px 12px rgba(37,99,235,0.3)}
.btn:hover{transform:translateY(-2px);box-shadow:0 6px 14px rgba(37,99,235,0.4)}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 24px rgba(0,0,0,0.1)}
@media (max-width:900px){
.hero{grid-template-columns:1fr}
.grid.cols-3{grid-template-columns:1fr}
.grid.cols-2{grid-template-columns:1fr}
}
#contact form {
  margin-top: 32px;
  background: var(--card);
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

#contact form input,
#contact form textarea {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 15px;
  color: var(--fg);
  width: 100%;
  transition: all 0.25s ease;
  outline: none;
}

#contact form input:focus,
#contact form textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
  background: #fff;
}

#contact form textarea {
  resize: vertical;
  min-height: 120px;
}

#contact form .btn {
  margin-top: 8px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  border: none;
  color: #fff;
  font-weight: 600;
  letter-spacing: .3px;
  cursor: pointer;
  padding: 14px 18px;
  border-radius: 12px;
  box-shadow: 0 6px 15px rgba(37,99,235,0.25);
  transition: all 0.3s ease;
}

#contact form .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(37,99,235,0.35);
}

/* Bigger logos on desktop, responsive downwards */
.grid.cols-4 { 
  display: grid;
  grid-template-columns: repeat(4, minmax(240px, 1fr)); /* larger cells */
  gap: 24px;
}

/* XL screens: even roomier */
@media (min-width: 1280px) {
  .grid.cols-4 { grid-template-columns: repeat(4, minmax(280px, 1fr)); }
}

/* Tablets */
@media (max-width: 1024px) {
  .grid.cols-4 { grid-template-columns: repeat(3, minmax(200px, 1fr)); }
}

/* Large phones */
@media (max-width: 768px) {
  .grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
}

/* Phones */
@media (max-width: 480px) {
  .grid.cols-4 { grid-template-columns: 1fr; }
}

/* Cards + images */
#clients .card {
  padding: 20px;
  display: grid;
  place-items: center;
  min-height: 140px;                    /* gives logos room to breathe */
}

/* Let logos grow on desktop, but cap them on small screens */
.client-logo {
  width: 100%;
  height: auto;
  max-width: 420px;                     /* bigger on desktop */
  max-height: clamp(90px, 12vw, 160px); /* scales with viewport, caps nicely */
  object-fit: contain;
  padding: 8px 12px;
}
html { scroll-behavior: smooth; }


/* Responsive header tweaks */
.header-inner { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:8px 0; }
.brand-row { display:flex; align-items:center; gap:12px; text-decoration:none; color:var(--brand); }
.brand-row .logo { width:44px; height:44px; border-radius:10px; display:grid; place-items:center; font-weight:900; box-shadow:0 6px 18px rgba(37,99,235,0.15); }
.nav-links { display:flex; gap:10px; align-items:center; }
.nav-links a { padding:8px 12px; border-radius:10px; color:var(--fg); font-weight:500; font-size:15px; }
.nav-links a:hover { background:var(--chip); color:var(--brand); }

/* Mobile menu button */
.menu-btn {
  display:none;
  background:transparent;
  border:1px solid transparent;
  padding:8px;
  border-radius:10px;
  cursor:pointer;
  font-size:20px;
  line-height:1;
}
.menu-btn:focus { outline:3px solid rgba(37,99,235,0.16); }

/* Mobile menu panel (hidden by default) */
.mobile-menu {
  display:none;
  position:fixed;
  inset:0 0 auto 0;
  top:64px;
  left:0;
  right:0;
  background:linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.98));
  border-top:1px solid #e6edf6;
  padding:18px;
  box-shadow:0 10px 40px rgba(15,23,42,0.06);
  z-index:80;
}
.mobile-menu .mlinks { display:grid; gap:10px; }
.mobile-menu .mlinks a { padding:12px 14px; border-radius:12px; background:transparent; color:var(--fg); }

/* small utility to show mobile menu */
.mobile-menu.show { display:block; animation:slideDown .22s ease; }
@keyframes slideDown { from { transform:translateY(-8px); opacity:0 } to { transform:none; opacity:1 } }

/* Responsive breakpoints */
@media (max-width: 880px) {
  .nav-links { display:none; }       /* hide desktop links */
  .menu-btn { display:inline-flex; }/* show hamburger */
  header .container { padding-left:16px; padding-right:16px; }
  .brand-row .logo { width:40px; height:40px; }
}

@media (min-width: 881px) {
  .mobile-menu { display:none !important; } /* never on desktop */
}