:root {
  --primary-color: #0d6efd;
  --primary-dark: #0b5ed7;
  --primary-light: #6ea8fe;
  --secondary-color: #6c757d;
  --success-color: #198754;
  --warning-color: #ffc107;
  --info-color: #0dcaf0;
  --light-color: #f8f9fa;
  --dark-color: #212529;
}

html {
  font-size: 14px;
  scroll-behavior: smooth;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--primary-color);
}

/* Hero Section Styles */
.hero-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  min-height: 70vh;
  display: flex;
  align-items: center;
}

.hero-image i {
  opacity: 0.8;
  animation: float 3s ease-in-out infinite;
}

.hero-image i:nth-child(2) {
  animation-delay: 0.5s;
}

.hero-image i:nth-child(3) {
  animation-delay: 1s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Card Styles */
.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-radius: 12px;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Button Styles */
.btn {
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(45deg, var(--primary-color), var(--primary-dark));
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(45deg, var(--primary-dark), var(--primary-color));
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(13, 110, 253, 0.3);
}

/* Form Styles */
.form-control {
  border-radius: 8px;
  border: 2px solid #e9ecef;
  padding: 12px 16px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-control-lg {
  padding: 16px 20px;
  font-size: 1.1rem;
}

/* Navbar Styles */
.navbar-brand {
  font-size: 1.5rem;
}

.navbar-nav .nav-link {
  font-weight: 500;
  margin: 0 8px;
  transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
  color: var(--primary-color) !important;
}

/* Alert Styles */
.alert {
  border-radius: 10px;
  border: none;
  font-weight: 500;
}

.alert-success {
  background: linear-gradient(45deg, #d4edda, #c3e6cb);
  color: var(--success-color);
}

.alert-danger {
  background: linear-gradient(45deg, #f8d7da, #f5c6cb);
  color: #721c24;
}

/* Section Spacing */
section {
  padding: 4rem 0;
}

@media (max-width: 768px) {
  section {
    padding: 2rem 0;
  }
  
  .hero-section {
    min-height: 60vh;
    text-align: center;
  }
  
  .hero-image {
    margin-top: 2rem;
  }
}

/* Pricing Card Styles */
.pricing-card {
  position: relative;
  overflow: hidden;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

/* Footer Styles */
footer {
  background: linear-gradient(135deg, #1a1a1a 0%, #2d3748 100%) !important;
}

footer .social-links a {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

footer .social-links a:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
}

/* Utility Classes */
.text-primary {
  color: var(--primary-color) !important;
}

.bg-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%) !important;
}

.shadow-sm {
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important;
}

.shadow {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

.shadow-lg {
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175) !important;
}