/* BoldSwap Trading Limited - Main Stylesheet */

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

/* CSS Custom Properties for Design System */
:root {
  /* Primary Colors - Boldswap Brand */
  --primary-blue: #001e47;        /* Main Boldswap Blue */
  --primary-blue-dark: #001533;   /* Darker variation */
  --primary-blue-light: #003366;  /* Lighter variation */
  --primary-blue-lighter: #004785; /* Background variation */
  --primary-blue-accent: #0066cc; /* Accent variation */
  
  /* Secondary Colors */
  --secondary-blue: #0066cc;       /* Complementary blue */
  --secondary-gray: #64748b;
  --secondary-gray-dark: #475569;
  --secondary-gray-light: #94a3b8;
  
  /* Accent Colors for Boldswap Theme */
  --accent-light-blue: #4a90e2;   /* Light accent */
  --accent-hover: #0052a3;        /* Hover states */
  --accent-focus: #007acc;        /* Focus states */
  
  /* Neutral Colors */
  --neutral-white: #ffffff;
  --neutral-gray-50: #f8fafc;
  --neutral-gray-100: #f1f5f9;
  --neutral-gray-200: #e2e8f0;
  --neutral-gray-300: #cbd5e1;
  --neutral-gray-600: #475569;
  --neutral-gray-800: #1e293b;
  --neutral-gray-900: #0f172a;
  
  /* Semantic Colors - Enhanced for Boldswap Theme */
  --success-green: #10b981;
  --success-light: #34d399;
  --warning-yellow: #f59e0b;
  --warning-light: #fbbf24;
  --error-red: #ef4444;
  --error-light: #f87171;
  
  /* Typography Scale */
  --font-family: 'Inter', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing Scale */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  
  /* Layout */
  --header-height: 80px;
  --footer-height: 120px;
  --container-max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--neutral-gray-800);
  background-color: var(--neutral-white);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-4);
  color: var(--neutral-gray-900);
}

h1 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  margin-bottom: var(--spacing-4);
  color: var(--secondary-gray);
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* Layout Components */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

.section {
  padding: var(--spacing-20) 0;
}

.section-alt {
  background-color: var(--neutral-gray-50);
}

.section-after-hero {
  padding-top: var(--spacing-8);
}

/* Header and Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--neutral-white);
  border-bottom: 1px solid var(--neutral-gray-200);
  z-index: 1000;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: var(--spacing-3) var(--spacing-6);
  max-width: var(--container-max-width);
  margin: 0 auto;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  height: 100%;
}

.logo-img {
  height: 50px;
  width: auto;
  max-width: 200px;
  transition: transform 0.3s ease;
  vertical-align: middle;
}

.logo:hover .logo-img {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-8);
  margin: 0;
  padding: 0;
  align-items: center;
  height: 100%;
}

.nav-menu li {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-link {
  color: var(--neutral-gray-600);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
  text-decoration: none;
  padding: var(--spacing-3) var(--spacing-3);
  border-radius: var(--radius-md);
  white-space: nowrap;
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-blue);
  background-color: var(--neutral-gray-50);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: var(--spacing-3);
  right: var(--spacing-3);
  height: 2px;
  background-color: var(--primary-blue);
  border-radius: 1px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  /* Styles moved to mobile-nav.css for enhanced design */
}

.mobile-menu-toggle span {
  /* Styles moved to mobile-nav.css for enhanced design */
}

/* Mobile Menu */
.nav-menu.mobile-active {
  /* Styles moved to mobile-nav.css for enhanced design */
}

/* Main Content Area */
.main {
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height) - var(--footer-height));
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
  color: var(--neutral-white);
  padding: var(--spacing-24) 0;
  text-align: center;
}

.hero h1 {
  color: var(--neutral-white);
  margin-bottom: var(--spacing-6);
  font-size: var(--font-size-5xl);
}

.hero p {
  font-size: var(--font-size-xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-4) var(--spacing-6);
  border-radius: var(--radius-lg);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
  font-size: var(--font-size-base);
  min-height: 44px;
}

.btn-primary {
  background-color: var(--primary-blue);
  color: var(--neutral-white);
  border-color: var(--primary-blue);
}

.btn-primary:hover {
  background-color: var(--primary-blue-dark);
  border-color: var(--primary-blue-dark);
  color: var(--neutral-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--secondary-blue);
  color: var(--neutral-white);
  border-color: var(--secondary-blue);
}

.btn-secondary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--neutral-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--neutral-white);
  border-color: var(--neutral-white);
}

.btn-outline:hover {
  background-color: var(--neutral-white);
  color: var(--primary-blue);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--spacing-8);
}

.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(4, 1fr);
}

/* Cards */
.card {
  background-color: var(--neutral-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-8);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  border: 1px solid var(--neutral-gray-200);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 48px;
  height: 48px;
  background-color: var(--primary-blue);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-4);
}

.card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--neutral-white);
}

/* Footer */
.footer {
  background-color: var(--neutral-gray-900);
  color: var(--neutral-gray-300);
  padding: var(--spacing-16) 0 var(--spacing-8) 0;
}

.footer .container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-6);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-8);
  margin-bottom: var(--spacing-12);
  align-items: start;
}

.footer-section {
  display: flex;
  flex-direction: column;
}

.footer-section h4 {
  color: var(--neutral-white);
  margin-bottom: var(--spacing-4);
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.footer-section p {
  color: var(--neutral-gray-300);
  margin-bottom: var(--spacing-2);
  line-height: 1.6;
}

.footer-section a {
  color: var(--neutral-gray-300);
  text-decoration: none;
  transition: color 0.3s ease;
  margin-bottom: var(--spacing-2);
  display: inline-block;
}

.footer-section a:hover {
  color: var(--neutral-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.footer-bottom {
  padding-top: var(--spacing-8);
  border-top: 1px solid var(--neutral-gray-800);
  text-align: center;
  color: var(--neutral-gray-400);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.875rem;
    --font-size-3xl: 1.5rem;
  }
  
  .container {
    padding: 0 var(--spacing-4);
  }
  
  .nav {
    padding: var(--spacing-2) var(--spacing-4);
  }
  
  .section {
    padding: var(--spacing-16) 0;
  }
  
  .nav-menu {
    display: none;
  }
  
  .nav-menu.mobile-active {
    display: flex;
  }
  
  .nav-menu.mobile-active .nav-link {
    padding: var(--spacing-3) var(--spacing-6);
    width: 100%;
    text-align: center;
    border-radius: 0;
  }
  
  .nav-menu.mobile-active .nav-link.active::after {
    left: var(--spacing-6);
    right: var(--spacing-6);
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .logo-img {
    height: 40px;
    max-width: 150px;
  }
  
  .hero {
    padding: var(--spacing-16) 0;
  }
  
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer .container {
    padding: 0 var(--spacing-4);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-12);
  }
  
  .footer-section {
    align-items: center;
  }
  
  .footer-links {
    align-items: center;
  }
}

@media (max-width: 480px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .card {
    padding: var(--spacing-6);
  }
}

/* Accessibility Enhancements */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus Indicators */
.btn:focus,
.nav-link:focus,
a:focus {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --primary-blue: #0000ff;
    --neutral-gray-800: #000000;
    --neutral-white: #ffffff;
  }
}