:root {
  --primary-color: #4a6cf7;
  --secondary-color: #6c757d;
  --success-color: #28a745;
  --background-color: #f8f9fa;
  --card-background: rgba(255, 255, 255, 0.9);
  --text-color: #2c3e50;
  --border-radius: 12px;
  --box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

/* Animated Background */
body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  z-index: -1;
}

@keyframes gradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Floating Elements Animation */
.floating {
  animation: floating 3s ease-in-out infinite;
}

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

.container {
  max-width: 1200px;
  padding: 2rem;
  position: relative;
  z-index: 1;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, #ffffff, #e0e0e0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeInDown 1s ease;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.lead {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  animation: fadeInUp 1s ease 0.2s both;
}

.card {
  background: var(--card-background);
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  animation: fadeInUp 0.8s ease;
  overflow: hidden;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.card:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.card-body {
  padding: 2rem;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-label {
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-control, .form-select {
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  transition: var(--transition);
  background-color: rgba(255, 255, 255, 0.9);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(74, 108, 247, 0.25);
  background-color: #ffffff;
}

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: linear-gradient(45deg, var(--primary-color), #6c5ce7);
  border: none;
  box-shadow: 0 4px 15px rgba(74, 108, 247, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74, 108, 247, 0.4);
}

.btn-success {
  background: linear-gradient(45deg, var(--success-color), #20c997);
  border: none;
  box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

canvas {
  border-radius: var(--border-radius);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.3);
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
}

canvas:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
  transform: scale(1.02);
}

#loadingSpinner {
  margin-right: 8px;
  color: #ffffff;
}

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

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  .card-body {
    padding: 1.5rem;
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #6c5ce7;
}

/* Glass Morphism Effect */
.glass {
  background: rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Shine Effect */
.shine {
  position: relative;
  overflow: hidden;
}

.shine::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(30deg);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% {
    transform: translateX(0) rotate(30deg);
  }
  100% {
    transform: translateX(100%) rotate(30deg);
  }
}