/* =============================================
   PREMIUM FINTECH DESIGN SYSTEM
   Dark Luxury Theme - Retrotrade Point
   ============================================= */

:root {
  /* Primary Colors */
  --color-primary-bg: #07111F;
  --color-secondary-bg: #0B1728;
  --color-accent: #3B82F6;
  --color-accent-hover: #2563EB;
  
  /* Text Colors */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #A8B3C7;
  --color-text-muted: #7B8A9C;
  
  /* Component Colors */
  --color-card-bg: #122033;
  --color-card-secondary: #16263D;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-light: rgba(255, 255, 255, 0.05);
  --color-success: #26D07C;
  --color-danger: #F23645;
  --color-warning: #F59E0B;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 4rem;
  
  /* Typography */
  --font-family-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-display: 'Merriweather', serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 2rem;
  --font-size-xxxl: 3rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.1);
  --shadow-xl: 0 12px 30px rgba(15, 23, 42, 0.08);
  --shadow-accent: 0 4px 16px rgba(37, 99, 235, 0.15);
  
  /* Transitions */
  --transition-fast: 0.15s ease-out;
  --transition-base: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
  
  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
}

/* =============================================
   GLOBAL STYLES
   ============================================= */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  color: var(--color-text-primary);
  background-color: var(--color-primary-bg);
  line-height: 1.6;
  font-size: var(--font-size-md);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-display);
  font-weight: 700;
  line-height: 1.2;
  margin: 0;
}

h1 {
  font-size: var(--font-size-xxxl);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: var(--font-size-xxl);
  margin-bottom: var(--space-lg);
}

h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
}

p {
  margin: 0 0 var(--space-md) 0;
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-accent-hover);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: var(--font-size-md);
  font-weight: 500;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #FFFFFF;
  border: 1px solid var(--color-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.24);
}

.btn-secondary {
  background: rgba(255,255,255,0.06);
  color: #FFFFFF;
  border: 1px solid rgba(255,255,255,0.14);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255,255,255,0.14);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.2);
  color: #FFFFFF;
}

.btn-lg {
  padding: var(--space-lg) var(--space-xxl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
}

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

.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: var(--space-lg);
  transition: all var(--transition-base);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.2);
}

.card:hover {
  border-color: rgba(37, 99, 235, 0.12);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  transform: translateY(-2px);
}

.card-premium {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(96, 165, 250, 0.01) 100%);
  border: 1px solid rgba(37, 99, 235, 0.08);
  backdrop-filter: blur(8px);
}

.card-highlighted {
  border: 2px solid #2563EB;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.15);
}

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

.navbar-premium {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  padding: 0 0;
  min-height: 80px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

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

.nav-link {
  color: #0F172A;
  font-weight: 500;
  margin: 0 var(--space-lg);
  transition: color var(--transition-base);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #2563EB;
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: #2563EB;
}

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

/* =============================================
   GRID & LAYOUT
   ============================================= */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-xxl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xxl);
}

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header p {
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* =============================================
   UTILITIES
   ============================================= */

.gradient-text {
  background: linear-gradient(135deg, #2563EB 0%, #3B82F6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.accent-text {
  color: #2563EB;
}

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: var(--space-sm); }
.pt-2 { padding-top: var(--space-md); }
.pt-3 { padding-top: var(--space-lg); }
.pt-4 { padding-top: var(--space-xl); }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: var(--space-sm); }
.pb-2 { padding-bottom: var(--space-md); }
.pb-3 { padding-bottom: var(--space-lg); }
.pb-4 { padding-bottom: var(--space-xl); }

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

.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-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }
.gap-3 { gap: var(--space-lg); }
.gap-4 { gap: var(--space-xl); }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideInDown {
  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 float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-5px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 8px rgba(37, 99, 235, 0.15);
  }
  50% {
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.25);
  }
}

@keyframes countUp {
  from {
    counter-increment: none;
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-slow) ease-out forwards;
}

.animate-slide-in-up {
  animation: slideInUp var(--transition-base) ease-out forwards;
}

.animate-slide-in-down {
  animation: slideInDown var(--transition-base) ease-out forwards;
}

.animate-float {
  animation: float 4s ease-in-out infinite;
}

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

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

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

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .section {
    padding: var(--space-xl) 0;
  }
  
  .nav-link {
    margin: 0 var(--space-md);
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }
  
  h2 {
    font-size: 1.25rem;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .section {
    padding: var(--space-lg) 0;
  }
  
  .btn {
    width: 100%;
  }
}