/* CSS Variables */
:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --secondary: #8b5cf6;
  --gradient-start: #6366f1;
  --gradient-end: #8b5cf6;
  --success: #10B981;
}

/* Light Theme Variables - Default */
[data-theme='light'] {
  --background: #fafafa;
  --card-bg: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border-color: rgba(226, 232, 240, 1);
  --muted: #f1f5f9;
}

/* Dark Theme Variables */
[data-theme='dark'] {
  --background: #0a0e1a;
  --card-bg: rgba(20, 25, 40, 0.7);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --border-color: rgba(148, 163, 184, 0.15);
  --muted: rgba(30, 35, 50, 0.5);
}

/* Base Styles Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--background);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  padding-top: 64px;
  overflow-x: hidden;
  max-width: 100vw;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1.25rem;
  border-radius: 0.5rem;
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  outline: none;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: white;
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover), var(--gradient-end));
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
}

.btn-default {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-default:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.3);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(139, 92, 246, 0.1);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Glass Card Effect */
.glass-card {
  text-align: center;
  background-color: var(--card-bg);
  border-radius: 1rem;
  border: 1px solid var(--card);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  aspect-ratio: 16/9;
}
.glass-card:not(:first-child){
  margin-top: 1rem;
}

/* Gradient Text Effect */
.gradient-text {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

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

.loading-spin {
  animation: spin 1s linear infinite;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Responsive Utilities */
.desktop-only {
  display: flex;
}

.mobile-only {
  display: none;
}

@media (max-width: 768px) {
  .container {
    padding: 0 1rem;
  }
  
  .desktop-only {
    display: none !important;
  }
  
  .mobile-only {
    display: flex !important;
  }
  
  .section-header h2 {
    font-size: 1.75rem;
  }
  
  .section-header p {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .section-header h2 {
    font-size: 1.5rem;
  }
}

/* Free Trial Hint with Bouncing Animation */
.free-trial-hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--accent-color, #f59e0b);
}

.free-trial-hint i {
  font-size: 1.2em;
  color: var(--accent-color, #f59e0b);
}

.bounce-animation {
  animation: bounce 1.5s ease-in-out infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(8px);
  }
  60% {
    transform: translateY(4px);
  }
}