/* ===================================
   CHATBOT CREATION PLATFORM - DESIGN SYSTEM
   Premium Modern Aesthetics with Glassmorphism
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* ===================================
   CSS CUSTOM PROPERTIES
   =================================== */

:root {
  /* Primary Color Palette - Refined Professional Colors */
  --primary-purple: #7C3AED;
  --primary-blue: #2563EB;
  --primary-cyan: #0891B2;
  --primary-pink: #DB2777;
  --primary-orange: #EA580C;
  --primary-indigo: #4F46E5;
  --primary-violet: #8B5CF6;

  /* Gradient Combinations - More Sophisticated */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-warm: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  --gradient-cool: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
  --gradient-sunset: linear-gradient(135deg, #ff6b6b 0%, #feca57 50%, #48dbfb 100%);
  --gradient-ocean: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  --gradient-premium: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-elegant: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #DB2777 100%);
  --gradient-professional: linear-gradient(135deg, #2563EB 0%, #4F46E5 100%);

  /* Background Colors - More Refined */
  --bg-primary: #FAFBFC;
  --bg-secondary: #F3F4F6;
  --bg-tertiary: #E5E7EB;
  --bg-card: rgba(255, 255, 255, 0.95);

  /* Glass Effect Colors - Enhanced */
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(99, 102, 241, 0.1);
  --glass-shadow: rgba(0, 0, 0, 0.08);
  --glass-hover-bg: rgba(255, 255, 255, 0.95);

  /* Text Colors - Better Contrast */
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #6B7280;
  --text-light: #9CA3AF;

  /* Spacing - More Refined Scale */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Border Radius - More Options */
  --radius-xs: 0.375rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;

  /* Shadows - Layered and Sophisticated */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px 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);
  --shadow-glow-lg: 0 0 40px rgba(99, 102, 241, 0.4);
  --shadow-colored: 0 10px 40px -10px rgba(99, 102, 241, 0.3);

  /* Transitions - More Variety */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Animated Background - More Subtle and Professional */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 20% 50%, rgba(79, 70, 229, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(219, 39, 119, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(37, 99, 235, 0.03) 0%, transparent 50%);
  z-index: -1;
  animation: backgroundShift 25s ease-in-out infinite;
}

@keyframes backgroundShift {

  0%,
  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }

  50% {
    opacity: 0.7;
    transform: scale(1.05) rotate(2deg);
  }
}

/* ===================================
   TYPOGRAPHY
   =================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  background: var(--gradient-ocean);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
  font-size: 1.125rem;
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* ===================================
   GLASS MORPHISM UTILITIES
   =================================== */

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
}

.glass-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(255, 255, 255, 0.5) inset;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.3), transparent);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), var(--shadow-colored), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
  border-color: rgba(99, 102, 241, 0.2);
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.875rem 1.75rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  letter-spacing: 0.3px;
  box-shadow: var(--shadow-sm);
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  transform: translate(-50%, -50%);
  transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
  width: 350px;
  height: 350px;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--gradient-professional);
  color: white;
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(79, 70, 229, 0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1.5px solid var(--glass-border);
  backdrop-filter: blur(12px);
}

.btn-secondary:hover {
  background: var(--glass-hover-bg);
  border-color: rgba(99, 102, 241, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-gradient {
  background: var(--gradient-elegant);
  color: white;
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(219, 39, 119, 0.1);
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), 0 0 30px rgba(219, 39, 119, 0.4);
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: 1.0625rem;
  border-radius: var(--radius-xl);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
}

/* ===================================
   CARDS
   =================================== */

.card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(255, 255, 255, 0.2);
}

.card-gradient {
  position: relative;
  overflow: hidden;
}

.card-gradient::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-ocean);
}

/* ===================================
   FORMS
   =================================== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9375rem;
  letter-spacing: 0.2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1.125rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  transition: all var(--transition-base);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-xs);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: rgba(99, 102, 241, 0.2);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-indigo);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1), var(--shadow-sm);
  background: rgba(255, 255, 255, 1);
  transform: translateY(-1px);
}

.form-input::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

/* ===================================
   CONTAINERS & LAYOUT
   =================================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: 1400px;
}

.container-narrow {
  max-width: 800px;
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-sm {
  padding: var(--spacing-xl) 0;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

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

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

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

/* ===================================
   ANIMATIONS
   =================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

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

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

/* Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-left {
  animation: slideInLeft 0.6s ease-out forwards;
}

.animate-slide-right {
  animation: slideInRight 0.6s ease-out forwards;
}

.animate-scale {
  animation: scaleIn 0.6s ease-out forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* ===================================
   NAVIGATION
   =================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  padding: var(--spacing-md) 0;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-xs);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
  border-bottom-color: rgba(99, 102, 241, 0.15);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-professional);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: all var(--transition-base);
}

.nav-logo:hover {
  transform: scale(1.02);
  filter: brightness(1.1);
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-professional);
  transition: width var(--transition-base);
  border-radius: var(--radius-full);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

/* ===================================
   BADGES & TAGS
   =================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-base);
}

.badge:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.badge-primary {
  background: var(--gradient-professional);
  color: white;
}

.badge-glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  backdrop-filter: blur(12px);
}

/* ===================================
   PROGRESS INDICATORS
   =================================== */

.progress-bar {
  width: 100%;
  height: 10px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.progress-fill {
  height: 100%;
  background: var(--gradient-professional);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 10px rgba(79, 70, 229, 0.3);
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(90deg,
      transparent,
      rgba(255, 255, 255, 0.4),
      transparent);
  animation: shimmer 2s ease-in-out infinite;
}

/* ===================================
   UTILITY CLASSES
   =================================== */

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

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

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

.text-gradient {
  background: var(--gradient-ocean);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

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

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

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

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

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

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

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

.hidden {
  display: none;
}

.visible {
  display: block;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 768px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
  }

  .nav-links {
    display: none;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }
}

/* ===================================
   SCROLLBAR STYLING
   =================================== */

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.6), rgba(124, 58, 237, 0.6));
  border-radius: var(--radius-sm);
  border: 2px solid var(--bg-secondary);
  transition: all var(--transition-base);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.8), rgba(124, 58, 237, 0.8));
}

::-webkit-scrollbar-thumb:active {
  background: linear-gradient(180deg, var(--primary-indigo), var(--primary-purple));
}

/* Firefox Scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(79, 70, 229, 0.6) var(--bg-secondary);
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-ocean);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gradient-sunset);
}