/* Modern UI Additions for Naeem Virtual Academy */
:root {
  --primary-color: #4f46e5;
  --secondary-color: #ec4899;
  --bg-gradient: linear-gradient(135deg, #f3f4f6 0%, #ffffff 100%);
  --dark-bg: #111827;
  --dark-surface: #1f2937;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.2);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
  font-family: 'Inter', 'Poppins', sans-serif;
  background: var(--bg-gradient);
  color: #374151;
  transition: all 0.3s ease;
}

/* Glassmorphism Header */
#header {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

#header.header-scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-md);
}

.logo a {
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
  letter-spacing: -0.5px;
}

/* Navbar Links */
.navbar a {
  font-weight: 500;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.5px;
  transition: 0.3s;
}

.navbar a:hover, .navbar .active {
  color: var(--primary-color) !important;
}

.navbar a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  visibility: hidden;
  transition: all 0.3s ease-in-out;
}

.navbar a:hover::after, .navbar .active::after {
  visibility: visible;
  width: 100%;
}

/* Cards & Courses */
.course-item, .card {
  background: #ffffff;
  border-radius: 16px;
  border: none;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.course-item:hover, .card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn-get-started, .get-started-btn {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border: none;
  border-radius: 30px;
  color: #fff !important;
  padding: 10px 25px;
  font-weight: 600;
  letter-spacing: 1px;
  transition: 0.3s;
  box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
}

.btn-get-started:hover, .get-started-btn:hover {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.6);
}

/* Footer */
#footer {
  background: var(--dark-bg);
  color: #fff;
  border-top: 1px solid #374151;
}

#footer .footer-top {
  background: var(--dark-surface);
}

#footer .copyright {
  font-weight: 300;
}

/* Micro-animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
}