/* Base theme */
:root {
  --brand: #6c63ff;
  --brand-2: #00c2a8;
  --ink: #0f172a;            /* slate-900 */
  --muted: #6b7280;          /* gray-500 */
  --bg: #ffffff;
  --hero-wave: #ffffff;
}

* { box-sizing: border-box; }

html, body { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Apple Color Emoji', 'Segoe UI Emoji';
  color: var(--ink);
  background: var(--bg);
}

/* Utilities */
.py-6 { padding-top: 4.5rem; padding-bottom: 4.5rem; }
.lh-tight { line-height: 1.1; }
.fw-extrabold { font-weight: 800; }

.text-gradient {
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.icon-lg {
  font-size: 1.75rem;
  line-height: 1;
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  border-radius: .75rem;
  background: color-mix(in srgb, var(--brand) 15%, white);
  color: color-mix(in srgb, var(--brand) 95%, black);
}

/* Navbar */
#mainNav.navbar {
  transition: background .25s ease, box-shadow .25s ease, backdrop-filter .25s ease;
  backdrop-filter: saturate(180%) blur(8px);
}
#mainNav.scrolled {
  background: rgba(255,255,255,.85) !important;
  box-shadow: 0 .25rem 1.25rem rgba(15,23,42,.08);
}

/* Hero */
.hero {
  padding-top: 5.5rem;
  background:
    radial-gradient(1200px 600px at -10% -10%, color-mix(in srgb, var(--brand) 20%, transparent), transparent 60%),
    radial-gradient(1000px 600px at 110% 0%, color-mix(in srgb, var(--brand-2) 18%, transparent), transparent 60%);
}
.hero .hero-mockup {
  border: 1px solid rgba(15,23,42,.08);
  background: #0b1020;
}
.hero .hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 90px;
}

/* Cards */
.card-hover { transition: transform .2s ease, box-shadow .2s ease; }
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 .75rem 2rem rgba(15,23,42,.12);
}
.feature-card .card-body { padding: 1.25rem 1.25rem 1.5rem; }

/* Pricing */
.pricing-popular { border-width: 2px !important; }

/* Back to top */
.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .2s ease;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Footer */
footer .nav-link { opacity: .9; }
footer .nav-link:hover { opacity: 1; }

/* Small tweaks */
@media (max-width: 991.98px) {
  .hero { padding-top: 5rem; }
}
/* Navbar brand logo */
.brand-logo {
  height: 44px;       /* desktop */
  width: 44px;        /* keeps it perfectly round */
  border-radius: 50%; /* round shape */
  object-fit: cover;  /* tidy crop just in case */
}

@media (max-width: 991.98px) {
  .brand-logo { height: 36px; width: 36px; }
}