:root {
    
    --color-bg-dark: #0a0a0f;
    --color-bg-gradient: linear-gradient(135deg, #0a0a0f 0%, #12121a 50%, #0e0e14 100%);
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-bg-card-hover: rgba(255, 255, 255, 0.06);
    
    
    --color-primary: #9945FF;
    --color-primary-glow: rgba(153, 69, 255, 0.4);
    --color-primary-light: #b975ff;
    
    
    --color-secondary: #14F195;
    --color-secondary-glow: rgba(20, 241, 149, 0.4);
    --color-secondary-light: #5ff7b9;
    
    
    --color-neon-cool: var(--color-secondary);
    --color-neon-cool-glow: var(--color-secondary-glow);
    --color-neon-warm: var(--color-primary);
    --color-neon-warm-glow: var(--color-primary-glow);
    
    
    --color-success: #14F195;
    --color-warning: #FFB800;
    --color-danger: #FF4545;
    --color-text: #ffffff;
    --color-text-muted: rgba(255, 255, 255, 0.7);
    --color-text-dim: rgba(255, 255, 255, 0.4);
    
    
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    
    --font-xs: clamp(0.7rem, 2vw, 0.75rem);
    --font-sm: clamp(0.8rem, 2.2vw, 0.875rem);
    --font-md: clamp(0.9rem, 2.5vw, 1rem);
    --font-lg: clamp(1.1rem, 3vw, 1.25rem);
    --font-xl: clamp(1.25rem, 3.5vw, 1.5rem);
    --font-2xl: clamp(1.5rem, 4vw, 2rem);
    --font-3xl: clamp(1.75rem, 5vw, 2.5rem);
    --font-4xl: clamp(2rem, 6vw, 3.5rem);
    
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    
    --shadow-glow-primary: 0 0 20px var(--color-primary-glow);
    --shadow-glow-secondary: 0 0 20px var(--color-secondary-glow);
    --shadow-glow-cool: var(--shadow-glow-secondary);
    --shadow-glow-warm: var(--shadow-glow-primary);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
    --blur-glass: blur(16px);
    
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-bounce: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    
    
    --container-max: 1200px;
    --nav-height: 64px;
    
    
    --touch-target-min: 44px;
}



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



.low-graphics-mode {
    --blur-glass: blur(0px);
}

.low-graphics-mode .particles,
.low-graphics-mode .particle,
.low-graphics-mode .star {
    display: none !important;
}

.low-graphics-mode * {
    animation: none !important;
    transition-duration: 0.1s !important;
}



*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Syne', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--color-bg-gradient);
    color: var(--color-text);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

input, select, textarea {
    font-family: inherit;
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

img, svg {
    display: block;
    max-width: 100%;
}

ul, ol {
    list-style: none;
}



h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

h1 { font-size: var(--font-4xl); }
h2 { font-size: var(--font-3xl); }
h3 { font-size: var(--font-2xl); }
h4 { font-size: var(--font-xl); }

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-glow {
    text-shadow: 0 0 20px var(--color-primary-glow);
}



.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.page {
    display: none;
    padding-top: calc(var(--nav-height) + var(--space-xl));
    padding-bottom: var(--space-3xl);
    min-height: 100vh;
}

.page.active {
    display: block;
    animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}




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

    .page {
        padding-top: calc(var(--nav-height) + var(--space-lg));
        padding-bottom: var(--space-2xl);
    }
}


@media (max-width: 480px) {
    :root {
        --nav-height: 56px;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 2.5rem;
    }

    .container {
        padding: 0 var(--space-sm);
    }

    .page {
        padding-top: calc(var(--nav-height) + var(--space-md));
        padding-bottom: var(--space-xl);
    }

    h1 { font-size: var(--font-3xl); }
    h2 { font-size: var(--font-2xl); }
    h3 { font-size: var(--font-xl); }
}


@media (max-width: 360px) {
    html {
        font-size: 14px;
    }

    :root {
        --space-lg: 1rem;
        --space-xl: 1.25rem;
        --space-2xl: 1.5rem;
    }

    .container {
        padding: 0 var(--space-xs);
    }
}


@media (max-width: 320px) {
    html {
        font-size: 13px;
    }
}


@media (orientation: landscape) and (max-height: 500px) {
    .page {
        padding-top: calc(var(--nav-height) + var(--space-md));
        padding-bottom: var(--space-xl);
    }
}


@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    body {
        -webkit-font-smoothing: antialiased;
    }
}