:root {
  --chat--color-primary: #0A2540;
  --chat--color-primary-shade-50: #1a3b5c;
  --chat--color-primary-shade-100: #2a5178;
  --chat--color-secondary: #0ea5e9;
  --chat--color-secondary-shade-50: #38bdf8;
  --chat--color-white: #ffffff;
  --chat--color-light: #f8fafc;
  --chat--color-dark: #0A2540;
  --chat--border-radius: 1rem;
  --chat--window--width: 400px;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: #0f172a; /* Deep slate background for dark mode aesthetic */
  color: #f1f5f9;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: 'Outfit', sans-serif;
}

/* Base Gradients and Patterns */
.bg-grid-pattern {
  background-image: linear-gradient(to right, rgba(255,255,255,0.05) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Navbar */
.glass-nav {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Custom Nav Link underline effect */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #0ea5e9, #38bdf8);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Service Cards */
.service-card {
  position: relative;
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(14, 165, 233, 0.4);
  box-shadow: 0 20px 40px rgba(14, 165, 233, 0.15);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #0ea5e9, transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.service-card:hover::before {
  opacity: 1;
}

/* Glowing text effects */
.text-glow {
  text-shadow: 0 0 20px rgba(14, 165, 233, 0.4);
}

.text-gradient {
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-image: linear-gradient(to right, #e2e8f0, #94a3b8);
}

.text-gradient-primary {
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-image: linear-gradient(to right, #0ea5e9, #6366f1);
}

/* About / Contact / Cards */
.card-glass {
  background: rgba(30, 41, 59, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, #0ea5e9, #0284c7);
  color: white;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(14, 165, 233, 0.4);
  background: linear-gradient(135deg, #0284c7, #0369a1);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  transition: all 0.3s ease;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.4);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #0f172a;
}
::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #475569;
}

/* Focus utilities */
.form-input {
  transition: all 0.2s ease;
}
.form-input:focus {
  border-color: #0ea5e9;
  box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.2);
  outline: none;
}