:root { --primary:#0f62fe; --dark:#0b1b2b; --gray:#6b7280; --light:#f5f7fb; --accent:#2dd4bf; }
*{box-sizing:border-box} html,body{margin:0;padding:0;font-family:system-ui,Segoe UI,Roboto,Arial;color:#111827}
a{color:var(--primary);text-decoration:none} a:hover{text-decoration:underline}
.container{width:min(1200px,92%);margin:0 auto}
.btn{display:inline-block;padding:12px 20px;border-radius:12px;background:var(--primary);color:#fff;font-weight:600}
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(8px);border-bottom:1px solid #e5e7eb}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.nav a.logo{display:flex;align-items:center;gap:12px}
.nav img.logo{height:36px;width:auto}
.nav ul{list-style:none;display:flex;gap:18px;padding:0;margin:0}
.hero{background:url('../img/hero-bg.svg') center/cover no-repeat;color:#fff}
.hero .overlay{background:linear-gradient(180deg,rgba(0,0,0,.45),rgba(0,0,0,.55))}
.hero .wrap{padding:96px 0 72px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid #e5e7eb;border-radius:18px;padding:22px;box-shadow:0 6px 20px rgba(0,0,0,.04)}
.section{padding:64px 0} .section.alt{background:var(--light)}
footer{background:#0c1320;color:#c9d2e1;padding:36px 0} footer a{color:#e5e7eb}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.copy{border-top:1px solid #222a3b;margin-top:24px;padding-top:18px;color:#9fb0c9;font-size:14px}
@media(max-width:960px){.grid-3{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.grid-3{grid-template-columns:1fr}.nav ul{display:none;position:absolute;top:60px;right:4%;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:14px;flex-direction:column;width:220px}}
/* --- Adjust footer logo size --- */
footer .footer-brand img {
  max-width: 160px;  /* adjust width to your taste */
  height: auto;
  display: block;
  margin-bottom: 10px; /* optional spacing */
}
/* --- Adjust header logo size --- */
header .nav img.logo {
  max-width: 180px;  /* adjust width as desired */
  height: auto;
  display: block;
}
/* --- Contact button feedback states --- */
.btn {
  transition: transform .15s, box-shadow .15s, background-color .2s, opacity .2s;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(1px) scale(.98); box-shadow: 0 4px 14px rgba(0,0,0,.12); }

.btn:focus-visible {
  outline: 3px solid rgba(15,98,254,.35);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(15,98,254,.15);
}

/* Loading state */
.btn .spinner { 
  display: none;
  width: 1em; height: 1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  vertical-align: -2px;
  animation: spin 1s linear infinite;
  margin-left: 8px;
}

.btn.loading { opacity: .8; pointer-events: none; }
.btn.loading .label { visibility: hidden; }
.btn.loading .spinner { display: inline-block; }

@keyframes spin { to { transform: rotate(360deg); } }