:root {
  /* Default (Dark Mode) Palette */
  --color-bg-primary: #050816;
  --color-bg-secondary: #0B1120;
  --color-text-primary: #f0f0f0;
  --color-text-secondary: #94a3b8;
  --color-accent-primary: #0066FF;
  --color-accent-secondary: #00D4FF;
  --color-danger: #ef4444;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-heading: #ffffff;
  
  /* Gradients & Shadows */
  --gradient-primary: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
  --gradient-dark: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  --gradient-glow: radial-gradient(circle, rgba(0,212,255,0.15) 0%, rgba(5,8,22,0) 70%);
  
  --shadow-glow: 0 0 15px rgba(0, 102, 255, 0.3);
  --glass-bg: rgba(11, 17, 32, 0.7);
  --glass-border: rgba(255, 255, 255, 0.05);

  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 5rem;
  --spacing-4xl: 8rem;

  /* Borders & Transitions */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Light Mode Variables */
@media (prefers-color-scheme: light) {
  :root:not(.dark-mode) {
    --color-bg-primary: #f8fafc;
    --color-bg-secondary: #ffffff;
    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-heading: #0f172a;
    
    --gradient-dark: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    --gradient-glow: radial-gradient(circle, rgba(0,102,255,0.05) 0%, rgba(255,255,255,0) 70%);
    
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 10px 25px rgba(0, 102, 255, 0.1);
  }
}

:root.light-mode {
  --color-bg-primary: #f8fafc;
  --color-bg-secondary: #ffffff;
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-heading: #0f172a;
  
  --gradient-dark: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  --gradient-glow: radial-gradient(circle, rgba(0,102,255,0.05) 0%, rgba(255,255,255,0) 70%);
  
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 10px 25px rgba(0, 102, 255, 0.1);
}

:root.dark-mode {
  --color-bg-primary: #050816;
  --color-bg-secondary: #0B1120;
  --color-text-primary: #f0f0f0;
  --color-text-secondary: #94a3b8;
  --color-heading: #ffffff;
  
  --gradient-dark: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  --gradient-glow: radial-gradient(circle, rgba(0,212,255,0.15) 0%, rgba(5,8,22,0) 70%);
  
  --shadow-glow: 0 0 15px rgba(0, 102, 255, 0.3);
  --glass-bg: rgba(11, 17, 32, 0.7);
  --glass-border: rgba(255, 255, 255, 0.05);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul, ol {
  list-style: none;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Typography Classes */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.75rem); }

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.text-muted { color: var(--color-text-secondary); }

/* Removed BEM classes - now using Tailwind CSS */

/* Swiper Slide Height Fix — prevents giant empty testimonial cards */
.testimonials-slider .swiper-slide {
  height: auto !important;
  align-self: stretch;
}

.testimonials-slider .swiper-wrapper {
  align-items: stretch;
}

/* Swiper pagination dot styling */
.swiper-pagination-bullet {
  background: var(--color-accent-primary) !important;
  opacity: 0.3;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.swiper-pagination-bullet-active {
  opacity: 1;
  transform: scale(1.3);
}