:root {
  /* Enhanced Color Palette */
  --primary: #DF6951;
  --primary-dark: #c5593f;
  --primary-light: #e87a65;
  --secondary: #181E4B;
  --secondary-dark: #0f1335;
  --secondary-light: #2a3158;
  --accent: #F1A501;
  --accent-dark: #d18f01;
  --accent-light: #f4b733;
  --blue-light: #5E6282;
  --blue-dark: #14183E;
  --blue-accent: #007BFF;
  --blue-accent-dark: #0056b3;
  --blue-accent-light: #3395ff;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --info: #17a2b8;
  
  /* Gradient Variations */
  --blue-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --warm-gradient: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);
  --tropical-gradient: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
  --sunset-gradient: linear-gradient(135deg, #d299c2 0%, #fef9d7 100%);
  --ocean-gradient: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
  
  /* Text Colors */
  --text-dark: var(--blue-dark);
  --text-light: var(--blue-light);
  --text-muted: #6c757d;
  --text-white: #ffffff;
  
  /* Background Colors */
  --bg: #F9FAFB;
  --bg-light: #ffffff;
  --bg-dark: #f8f9fa;
  --bg-section: #fafbfc;
  --white: #FFFFFF;
  --black: #000000;
  --border-light: #E7E7E7;
  --border-medium: #dee2e6;

  /* Enhanced Spacing System */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Border Radius */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-2xl: 40px;
  --radius-full: 50%;

  /* Container & Layout */
  --max-width: 1400px;
  --container-pad: 1.5rem;
  --container-pad-mobile: 1rem;
  
  /* Enhanced Shadow System */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 4px 15px rgba(24, 30, 75, 0.08);
  --shadow-md: 0 10px 25px rgba(24, 30, 75, 0.12);
  --shadow-lg: 0 20px 40px rgba(24, 30, 75, 0.15);
  --shadow-xl: 0 30px 60px rgba(24, 30, 75, 0.2);
  --shadow-2xl: 0 40px 80px rgba(24, 30, 75, 0.25);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);
  
  /* Animation Variables */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-bounce: 300ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Z-index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

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

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

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
}

body {
  font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--bg);
  color: var(--text-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  font-size: 1rem;
  overflow-x: hidden;
  font-weight: 400;
}

.page-wrapper {
  position: relative;
  width: 100%;
  min-height: 100vh;
}

/* Typography Enhancement */
h1, h2, h3, h4, h5, h6 {
  font-family: "Volkhov", Georgia, serif;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.3;
  margin-bottom: 0.75rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h5 { font-size: clamp(1.125rem, 2vw, 1.25rem); }
h6 { font-size: clamp(1rem, 1.5vw, 1.125rem); }

p {
  margin-bottom: 1rem;
  font-weight: 400;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-normal);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Enhanced Container System */
.container {
  max-width: var(--max-width);
  padding: 0 var(--container-pad);
  margin: 0 auto;
  width: 100%;
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--container-pad-mobile);
  }
}

/* Enhanced Header */
/* Styles moved to navbar.css */

/* Enhanced Button System */
.btn-custom {
  padding: 0.875rem 2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  border: none;
  position: relative;
  overflow: hidden;
  text-transform: none;
  letter-spacing: 0.025em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
}

.btn-custom::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.btn-custom:hover::before {
  left: 100%;
}

.btn-primary-custom {
  background: var(--blue-accent);
  color: var(--text-white);
  box-shadow: 0 8px 25px rgba(0, 123, 255, 0.3);
}

.btn-primary-custom:hover {
  background: var(--blue-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(0, 123, 255, 0.4);
  color: var(--text-white);
}

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

.btn-outline-custom {
  border: 2px solid var(--secondary);
  color: var(--secondary);
  background: transparent;
  box-shadow: var(--shadow-sm);
}

.btn-outline-custom:hover {
  background: var(--secondary);
  color: var(--text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
  .btn-custom {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    width: 100%;
    max-width: 280px;
  }
}

@media (max-width: 480px) {
  .btn-custom {
    padding: 0.625rem 1.25rem;
    font-size: 0.85rem;
  }
}

/* Enhanced Footer */
.site-footer {
  padding: 4rem 0 2rem;
  color: var(--text-light);
  background: var(--secondary);
  position: relative;
  overflow: hidden;
}

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

.footer-brand {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--text-white) !important;
  margin-bottom: 1rem;
  display: inline-block;
  transition: var(--transition-normal);
}

.footer-brand:hover {
  color: var(--blue-accent-light) !important;
  transform: scale(1.05);
}

.footer-col {
  margin-bottom: 2rem;
}

.footer-col h5 {
  color: var(--text-white);
  margin-bottom: 1.5rem;
  font-family: 'Poppins', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  position: relative;
}

.footer-col h5::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--blue-accent);
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col ul a {
  color: var(--blue-light);
  transition: var(--transition-normal);
  font-size: 0.95rem;
  position: relative;
  padding-left: 0;
}

.footer-col ul a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 1px;
  background: var(--blue-accent);
  transition: var(--transition-normal);
  transform: translateY(-50%);
}

.footer-col ul a:hover {
  color: var(--blue-accent-light);
  padding-left: 1rem;
}

.footer-col ul a:hover::before {
  width: 0.75rem;
}

/* Social Links */
.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-link {
  width: 45px;
  height: 45px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: 1.1rem;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}

.social-link:hover {
  background: var(--blue-accent);
  color: var(--text-white);
  transform: translateY(-3px) scale(1.1);
  box-shadow: 0 8px 20px rgba(0, 123, 255, 0.3);
}

/* App Download Buttons */
.app-download {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.app-btn {
  display: inline-block;
  transition: var(--transition-normal);
}

.app-btn img {
  height: 45px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: var(--transition-normal);
}

.app-btn:hover {
  transform: translateY(-2px);
}

.app-btn:hover img {
  filter: none;
}

/* Responsive Utilities */
@media (max-width: 992px) {
  .site-footer {
    padding: 3rem 0 1.5rem;
  }
  
  .footer-col {
    margin-bottom: 1.5rem;
  }
}

@media (max-width: 768px) {
  .site-footer {
    padding: 2.5rem 0 1rem;
    text-align: center;
  }
  
  .footer-col h5::after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .social-links {
    justify-content: center;
  }
  
  .app-download {
    align-items: center;
  }
}

@media (max-width: 576px) {
  .social-link {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  
  .app-btn img {
    height: 40px;
  }
}

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

/* Focus Styles */
*:focus {
  outline: 2px solid var(--blue-accent);
  outline-offset: 2px;
}

.btn-custom:focus {
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.5);
}

/* Selection Styles */
::selection {
  background: rgba(0, 123, 255, 0.2);
  color: var(--text-dark);
}

/* Scroll Behavior */
html {
  scroll-padding-top: 100px;
}

/* Loading States */
.loading {
  opacity: 0.7;
  pointer-events: none;
  cursor: wait;
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .newsletter,
  .sponsors {
    display: none !important;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
}

.skip-link {
  display: none;
}