:root {
    --bg-primary: #0f0f23;
    --bg-secondary: #112240;
    --bg-dark: #0a0a1a;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-card-featured: rgba(100, 255, 218, 0.05);
    --accent: #64ffda;
    --accent-blue: #00b4d8;
    --accent-gradient: linear-gradient(45deg, #64ffda, #00b4d8);
    --border-subtle: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(100, 255, 218, 0.1);
    --border-accent-hover: rgba(100, 255, 218, 0.4);
    --border-accent-medium: rgba(100, 255, 218, 0.3);
    --border-accent-light: rgba(100, 255, 218, 0.2);
    --text-heading: #ccd6f6;
    --text-muted: #8892b0;
    --text-body: #333;
    --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.3);
    --shadow-card-lg: 0 25px 60px rgba(0, 0, 0, 0.4);
    --shadow-accent: 0 10px 30px rgba(100, 255, 218, 0.3);
    --transition-speed: 0.3s;
    --transition-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-muted);
    background: var(--bg-primary);
    overflow-x: hidden;
}

img, video, svg {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
}

h2 {
    font-size: 2.5rem;
    color: var(--text-heading);
    text-align: center;
    margin-bottom: 60px;
    font-weight: 700;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-top: 15px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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