@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Lexend:wght@400;500;600;700&display=swap');

:root {
  /* Primary Colors - Modern Palette */
  --primary-500: #6366f1;
  --primary-600: #4f46e5;
  --primary-700: #4338ca;
  --primary-900: #312e81;
  
  /* Accent Colors */
  --accent-500: #ec4899;
  --accent-600: #db2777;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --green-500: #10b981;
  --green-600: #059669;
  --red-500: #ef4444;
  --red-600: #dc2626;
  
  /* Neutral Colors */
  --dark-900: #0f172a;
  --dark-800: #1e293b;
  --dark-700: #334155;
  --dark-600: #475569;
  --dark-500: #64748b;
  --dark-300: #cbd5e1;
  --dark-200: #e2e8f0;
  --dark-100: #f1f5f9;
  
  /* Semantic Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--dark-900);
  color: #e2e8f0;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(236, 72, 153, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Scroll Bar Styling */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--dark-900);
}

::-webkit-scrollbar-thumb {
  background: var(--dark-700);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--dark-600);
}

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
  }
  50% {
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.8);
  }
}

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

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Lexend', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: #f1f5f9;
}

h1 {
  font-size: clamp(1.875rem, 5vw, 3.75rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.875rem);
}

h4 {
  font-size: 1.125rem;
}

p {
  color: #cbd5e1;
  line-height: 1.75;
}

/* Links */
a {
  color: var(--primary-500);
  text-decoration: none;
  transition: var(--transition-base);
}

a:hover {
  color: var(--primary-600);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.625rem 1.25rem;
  font-weight: 600;
  font-size: 0.875rem;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  font-family: 'Inter', sans-serif;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
  background: var(--dark-800);
  color: #e2e8f0;
  border: 1px solid var(--dark-700);
}

.btn-secondary:hover {
  background: var(--dark-700);
  border-color: var(--dark-600);
}

.btn-danger {
  background: linear-gradient(135deg, var(--red-500) 0%, var(--red-600) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  box-shadow: 0 8px 25px rgba(239, 68, 68, 0.5);
}

.btn-success {
  background: linear-gradient(135deg, var(--green-500) 0%, var(--green-600) 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
}

.btn-lg {
  padding: 0.875rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-lg);
}

/* Cards */
.card {
  background: rgba(30, 41, 59, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-lg);
  transition: var(--transition-base);
}

.card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #f1f5f9;
}

.card-body {
  color: #cbd5e1;
}

/* Input Fields */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: #e2e8f0;
}

.form-control,
.form-select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-lg);
  color: #e2e8f0;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  transition: var(--transition-base);
}

.form-control:focus,
.form-select:focus,
textarea:focus {
  outline: none;
  background: rgba(15, 23, 42, 0.8);
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-control::placeholder,
textarea::placeholder {
  color: var(--dark-500);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
}

.badge-primary {
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary-500);
}

.badge-success {
  background: rgba(16, 185, 129, 0.2);
  color: var(--green-500);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.2);
  color: var(--red-500);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.2);
  color: #f59e0b;
}

.badge-info {
  background: rgba(59, 130, 246, 0.2);
  color: var(--blue-500);
}

/* Loading Spinner */
.spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid rgba(99, 102, 241, 0.2);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Utilities */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-left {
  text-align: left;
}

.text-muted {
  color: var(--dark-500);
}

.text-primary {
  color: var(--primary-500);
}

.text-danger {
  color: var(--red-500);
}

.text-success {
  color: var(--green-500);
}

.text-warning {
  color: #f59e0b;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: var(--spacing-sm);
}

.mb-2 {
  margin-bottom: var(--spacing-md);
}

.mb-3 {
  margin-bottom: var(--spacing-lg);
}

.mb-4 {
  margin-bottom: var(--spacing-xl);
}

.mt-0 {
  margin-top: 0;
}

.mt-1 {
  margin-top: var(--spacing-sm);
}

.mt-2 {
  margin-top: var(--spacing-md);
}

.mt-3 {
  margin-top: var(--spacing-lg);
}

.mt-4 {
  margin-top: var(--spacing-xl);
}

.p-0 {
  padding: 0;
}

.p-1 {
  padding: var(--spacing-sm);
}

.p-2 {
  padding: var(--spacing-md);
}

.p-3 {
  padding: var(--spacing-lg);
}

.p-4 {
  padding: var(--spacing-xl);
}

.d-flex {
  display: flex;
}

.align-items-center {
  align-items: center;
}

.justify-content-center {
  justify-content: center;
}

.justify-content-between {
  justify-content: space-between;
}

.gap-1 {
  gap: var(--spacing-sm);
}

.gap-2 {
  gap: var(--spacing-md);
}

.gap-3 {
  gap: var(--spacing-lg);
}

.flex-wrap {
  flex-wrap: wrap;
}

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.w-100 {
  width: 100%;
}

.h-100 {
  height: 100%;
}

.rounded {
  border-radius: var(--radius-lg);
}

.rounded-full {
  border-radius: var(--radius-full);
}

.border {
  border: 1px solid var(--dark-700);
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-75 {
  opacity: 0.75;
}

/* Responsive */
@media (max-width: 768px) {
  :root {
    font-size: 14px;
  }
  
  h1 {
    font-size: 1.875rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  :root {
    font-size: 13px;
  }
  
  h1 {
    font-size: 1.5rem;
  }
  
  h2 {
    font-size: 1.25rem;
  }
  
  h3 {
    font-size: 1.125rem;
  }
  
  .card {
    padding: var(--spacing-md);
  }
  
  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
}