:root {
  --primary: #00d2ff;
  --primary-dark: #00a8cc;
  --secondary: #9d50bb;
  --accent: #6e48aa;
  --bg-dark: #0f172a;
  --bg-light: #f8fafc;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --glass: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --card-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.1);
  --font-inter: 'Inter', sans-serif;
}

body {
  font-family: var(--font-inter);
  color: var(--text-main);
  background-color: var(--bg-light);
  overflow-x: hidden;
}

html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

/* Navbar Tuning */
.navbar {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 1rem 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.bg-light {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1e293b 100%);
  position: relative;
  overflow: hidden;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.15) 0%, transparent 70%);
  z-index: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
}

/* Glassmorphism Card */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Services Sections */
.services-card {
  border: none;
  border-radius: 20px;
  background: #fff;
  transition: all 0.3s ease;
  box-shadow: var(--card-shadow);
  height: 100%;
}

.services-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
}

.services-card .bi {
  color: var(--primary);
  background: linear-gradient(135deg, #e0f2fe 0%, #f0f9ff 100%);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

/* Custom Buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border: none;
  border-radius: 12px;
  padding: 0.8rem 2rem;
  font-weight: 600;
  box-shadow: 0 10px 15px -3px rgba(0, 210, 255, 0.3);
  transition: all 0.3s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 25px -5px rgba(0, 210, 255, 0.4);
}

/* Animations (Legacy Support) */
.slide-in-left, .slide-in-right {
  opacity: 0;
  transition: all 0.8s ease-out;
}

.slide-in-left.active, .slide-in-right.active {
  opacity: 1;
  transform: translate(0);
}