/**
 * PREMIUM Design System - High-End Prop Trading Platform
 * Inspired by: Plusmarkets, Upcomers, TakeProfitTrader, E8Markets, TradeLocker, AlphaFunded, FundTicks
 * Premium, sophisticated, professional design
 */

:root {
  /* Premium Color Palette - Dark, Sophisticated */
  --color-primary: #4F46E5;
  --color-primary-dark: #4338CA;
  --color-primary-light: #6366F1;
  --color-secondary: #7C3AED;
  --color-accent: #06B6D4;
  --color-accent-dark: #0891B2;
  
  /* Status Colors - Refined */
  --color-success: #059669;
  --color-warning: #D97706;
  --color-danger: #DC2626;
  --color-info: #0284C7;
  
  /* Premium Neutrals - Rich & Deep */
  --color-dark: #0A0E27;
  --color-dark-2: #111827;
  --color-dark-3: #1F2937;
  --color-medium: #4B5563;
  --color-medium-light: #6B7280;
  --color-light: #F3F4F6;
  --color-lighter: #F9FAFB;
  --color-white: #FFFFFF;
  
  /* Premium Gradients */
  --gradient-primary: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #06B6D4 100%);
  --gradient-hero: linear-gradient(135deg, #0A0E27 0%, #1F2937 50%, #4F46E5 100%);
  --gradient-card: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(124, 58, 237, 0.05) 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(10, 14, 39, 0.8) 0%, rgba(10, 14, 39, 0.95) 100%);
  --gradient-text: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #06B6D4 100%);
  
  /* Premium Shadows - Deep & Layered */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
  --shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 32px rgba(79, 70, 229, 0.4);
  --shadow-glow-strong: 0 0 48px rgba(79, 70, 229, 0.6);
  
  /* Premium Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;
  
  /* Premium Spacing - Generous */
  --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;
  --spacing-5xl: 8rem;
  
  /* Premium Transitions - Smooth & Refined */
  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 600ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Premium Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;
  
  /* Letter Spacing */
  --letter-tight: -0.025em;
  --letter-normal: 0;
  --letter-wide: 0.025em;
  --letter-wider: 0.05em;
  
  /* Line Heights */
  --line-tight: 1.2;
  --line-normal: 1.5;
  --line-relaxed: 1.75;
  --line-loose: 2;
}

/* Global Premium Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family);
  color: var(--color-dark-2);
  line-height: var(--line-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  background-color: var(--color-white);
}

/* Premium Typography Scale */
.text-hero {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-tight);
  letter-spacing: var(--letter-tight);
}

.text-display {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-tight);
  letter-spacing: var(--letter-tight);
}

.text-h1 {
  font-size: clamp(1.875rem, 3vw, 2.5rem);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-tight);
  letter-spacing: var(--letter-tight);
}

.text-h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-tight);
  letter-spacing: var(--letter-normal);
}

.text-h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-normal);
}

.text-body {
  font-size: 1rem;
  font-weight: var(--font-weight-normal);
  line-height: var(--line-relaxed);
  color: var(--color-medium);
}

.text-small {
  font-size: 0.875rem;
  font-weight: var(--font-weight-normal);
  line-height: var(--line-normal);
  color: var(--color-medium-light);
}

/* Premium Glassmorphism */
.glass-premium {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-xl);
}

.glass-dark-premium {
  background: rgba(10, 14, 39, 0.9);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-2xl);
}

/* Premium Cards */
.card-premium {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
  border: 1px solid rgba(0, 0, 0, 0.04);
  position: relative;
  overflow: hidden;
}

.card-premium::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card-premium:hover::before {
  opacity: 1;
}

.card-premium:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: rgba(79, 70, 229, 0.2);
}

.card-feature {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.card-feature::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card-feature:hover::after {
  opacity: 1;
}

.card-feature:hover {
  transform: translateY(-12px);
  box-shadow: var(--shadow-2xl), var(--shadow-glow);
}

/* Premium Pricing Cards */
.pricing-card-premium {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-3xl);
  box-shadow: var(--shadow-xl);
  transition: all var(--transition-slow);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.pricing-card-premium::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-2xl);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.pricing-card-premium:hover::before {
  opacity: 1;
}

.pricing-card-premium:hover {
  transform: translateY(-16px) scale(1.02);
  box-shadow: var(--shadow-2xl), var(--shadow-glow-strong);
}

.pricing-card-premium.featured {
  background: var(--gradient-primary);
  color: var(--color-white);
  transform: scale(1.05);
  box-shadow: var(--shadow-2xl), var(--shadow-glow-strong);
  border: 2px solid transparent;
}

.pricing-card-premium.featured::before {
  display: none;
}

.pricing-card-premium.featured .text-body,
.pricing-card-premium.featured .text-small,
.pricing-card-premium.featured .text-h2,
.pricing-card-premium.featured .text-h3 {
  color: var(--color-white);
}

.pricing-card-premium.featured .stat-premium {
  background: linear-gradient(135deg, #FFFFFF 0%, rgba(255,255,255,0.9) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Premium Buttons */
.btn-premium {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-weight: var(--font-weight-semibold);
  font-size: 1rem;
  letter-spacing: var(--letter-wide);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  font-size: 0.875rem;
}

.btn-premium-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
}

.btn-premium-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-premium-primary:hover::before {
  width: 400px;
  height: 400px;
}

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

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

.btn-premium-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn-premium-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-premium-lg {
  padding: 1.25rem 3rem;
  font-size: 1rem;
}

/* Premium Hero Section */
.hero-premium {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero-premium::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 50%, rgba(79, 70, 229, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, rgba(6, 182, 212, 0.2) 0%, transparent 50%);
  animation: heroPulse 20s ease-in-out infinite;
}

@keyframes heroPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  color: var(--color-white);
}

/* Premium Feature Icons */
.icon-premium {
  width: 4rem;
  height: 4rem;
  border-radius: var(--radius-xl);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.75rem;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.icon-premium::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.icon-premium:hover::before {
  opacity: 1;
}

.icon-premium:hover {
  transform: translateY(-4px) rotate(5deg) scale(1.1);
  box-shadow: var(--shadow-xl), var(--shadow-glow-strong);
}

/* Premium Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in-down {
  animation: fadeInDown 0.8s ease-out;
}

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

.animate-slide-in-right {
  animation: slideInRight 0.8s ease-out;
}

/* Premium Header */
.header-premium {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header-premium.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.99);
}

/* Premium Navigation Links */
.nav-link-premium {
  position: relative;
  color: var(--color-dark-2);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: color var(--transition-base);
  padding: 0.5rem 0;
}

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

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

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

/* Premium Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--color-lighter);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-lighter);
}

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

/* Premium Text Gradient */
.text-gradient-premium {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

/* Premium Section Spacing */
.section-premium {
  padding: var(--spacing-5xl) 0;
}

.section-premium-sm {
  padding: var(--spacing-4xl) 0;
}

/* Premium Container */
.container-premium {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
}

/* Premium Badge */
.badge-premium {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-wide);
  text-transform: uppercase;
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

/* Premium Divider */
.divider-premium {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
  margin: var(--spacing-3xl) 0;
}

/* Premium Stats/Number Display */
.stat-premium {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-tight);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Premium Loading States */
.loading-premium {
  display: inline-block;
  width: 2rem;
  height: 2rem;
  border: 3px solid rgba(79, 70, 229, 0.1);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Premium Focus States */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Premium FAQ Details Styling */
details summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  display: block;
  width: 100%;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::marker {
  display: none;
}

details[open] summary {
  margin-bottom: 0;
}

/* Ensure the entire summary area is clickable */
#faq details summary {
  position: relative;
  padding: var(--spacing-lg);
  margin: calc(var(--spacing-lg) * -1);
}

#faq details summary span {
  pointer-events: none;
}

#faq details summary svg {
  pointer-events: none;
}

/* Bull and Bear Icons Animation */
@keyframes floatUp {
  0%, 100% {
    transform: translateY(0px) scale(1);
  }
  50% {
    transform: translateY(-10px) scale(1.05);
  }
}

@keyframes floatDown {
  0%, 100% {
    transform: translateY(0px) scale(1);
  }
  50% {
    transform: translateY(10px) scale(1.05);
  }
}

.bull-bear-icon {
  transition: transform 0.3s ease;
  opacity: 0.9;
}

.bull-bear-icon:hover {
  transform: scale(1.1);
  opacity: 1;
}

.bull-icon {
  animation: floatUp 3s ease-in-out infinite;
}

.bear-icon {
  animation: floatDown 3s ease-in-out infinite;
}

/* Premium Mobile Optimizations */
@media (max-width: 768px) {
  .card-premium,
  .card-feature,
  .pricing-card-premium {
    padding: var(--spacing-xl);
  }
  
  .btn-premium {
    padding: 0.875rem 2rem;
    font-size: 0.8125rem;
  }
  
  .section-premium {
    padding: var(--spacing-3xl) 0;
  }
}

/* Premium Dark Mode Support (Future) */
@media (prefers-color-scheme: dark) {
  /* Can be implemented later */
}

/* Premium Print Styles */
@media print {
  .header-premium,
  .btn-premium {
    display: none;
  }
}