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

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

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Gradient backgrounds */
.bg-gradient-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg-gradient-success {
  background: linear-gradient(135deg, #56ab2f 0%, #a8e063 100%);
}

.bg-gradient-info {
  background: linear-gradient(135deg, #2193b0 0%, #6dd5ed 100%);
}

/* Hero section */
.hero-section {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}

.hero-section > * {
  position: relative;
  z-index: 1;
}

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #ffd700 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.navbar {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.navbar-nav .nav-link {
  transition: all 0.3s ease;
  border-radius: 8px;
}

.navbar-nav .nav-link:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* Dropdown menu */
.dropdown-menu-dark {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 0.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.dropdown-menu-dark .dropdown-item {
  color: rgba(255, 255, 255, 0.85);
  border-radius: 8px;
  padding: 0.5rem 1rem;
  transition: all 0.2s ease;
}

.dropdown-menu-dark .dropdown-item:hover,
.dropdown-menu-dark .dropdown-item:focus {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  transform: translateX(4px);
}

.dropdown-menu-dark .dropdown-divider {
  border-color: rgba(255, 255, 255, 0.15);
  margin: 0.3rem 0.5rem;
}

/* Cards */
.card {
  transition: all 0.3s ease;
  border-radius: 15px;
}

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

/* Feature icons */
.feature-icon-large {
  transition: all 0.3s ease;
}

.hover-lift:hover .feature-icon-large {
  transform: rotate(10deg) scale(1.1);
}

/* Buttons */
.btn {
  border-radius: 10px;
  transition: all 0.3s ease;
  font-weight: 500;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.btn-warning {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  border: none;
  color: white;
}

.btn-warning:hover {
  background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
  color: white;
}

/* Badges */
.badge {
  border-radius: 8px;
  padding: 0.5em 0.8em;
  font-weight: 500;
}

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

.animate-fade-in {
  animation: fadeIn 1s ease-out;
}

/* Footer */
footer a.hover-link:hover {
  color: #ffffff !important;
  padding-left: 5px;
  transition: all 0.3s ease;
}

footer .hover-scale:hover {
  transform: scale(1.2);
  transition: all 0.3s ease;
}

/* Form controls */
.form-control:focus {
  border-color: #667eea;
  box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-control-lg {
  border-radius: 10px;
  padding: 0.75rem 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero-section {
    padding: 3rem 0 !important;
  }
  
  .display-3 {
    font-size: 2.5rem;
  }
  
  .display-4 {
    font-size: 2rem;
  }
}

/* Utilities */
.rounded-4 {
  border-radius: 15px !important;
}

.shadow-lg {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1) !important;
}

/* Loading states */
.btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

/* Screenshot gallery */
.screenshot-card {
  border-radius: 15px;
  overflow: hidden;
}

.screenshot-wrapper {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.screenshot-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.screenshot-wrapper:hover .screenshot-img {
  transform: scale(1.05);
}

.screenshot-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.screenshot-wrapper:hover .screenshot-overlay {
  opacity: 1;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}