:root {
  /* Primary Colors - Light Mode */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --accent-blue: #2563eb;
  --accent-light-blue: #38bdf8;
  --border-color: #e2e8f0;
  --card-bg: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-bg: rgba(255, 255, 255, 0.8);
  --nav-bg: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] {
  /* Primary Colors - Dark Mode */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --accent-blue: #3b82f6;
  --accent-light-blue: #7dd3fc;
  --border-color: #334155;
  --card-bg: rgba(30, 41, 59, 0.9);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-bg: rgba(15, 23, 42, 0.8);
  --nav-bg: rgba(15, 23, 42, 0.95);
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
}

/* Glassmorphism Utilities */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}

/* Navbar */
.navbar {
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.navbar-brand {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text-primary) !important;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  color: var(--text-primary) !important;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--accent-blue) !important;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--accent-blue);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* Buttons */
.btn-primary-custom {
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-light-blue) 100%);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
  color: #fff;
}

.btn-outline-custom {
  border: 2px solid var(--accent-blue);
  color: var(--text-primary);
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-outline-custom:hover {
  background-color: var(--accent-blue);
  color: #fff;
}

/* Theme Toggle */
.theme-toggle {
  cursor: pointer;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  border-radius: 50%;
  transition: background-color 0.3s ease;
}

.theme-toggle:hover {
  background-color: var(--bg-secondary);
}

/* Footer */
footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding-top: 4rem;
  padding-bottom: 2rem;
}

footer h5 {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

footer a:hover {
  color: var(--accent-blue);
}

/* Cards & Services */
.premium-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.premium-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  border-color: var(--accent-light-blue);
}

.icon-box {
  width: 64px;
  height: 64px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--accent-blue);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 8rem 0 6rem;
  overflow: hidden;
}

.hero-gradient-blob {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(56,189,248,0.2) 0%, rgba(37,99,235,0.1) 50%, transparent 70%);
  border-radius: 50%;
  top: -200px;
  right: -200px;
  z-index: -1;
  filter: blur(60px);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}