:root {
    --background: 0 0% 8%;
    --foreground: 0 0% 95%;
    --card: 0 0% 12%;
    --card-foreground: 0 0% 90%;
    --primary: 210 100% 60%;
    --primary-foreground: 0 0% 100%;
    --secondary: 0 0% 18%;
    --secondary-foreground: 0 0% 85%;
    --muted: 0 0% 15%;
    --muted-foreground: 0 0% 65%;
    --accent: 210 100% 60%;
    --accent-foreground: 0 0% 100%;
    --border: 0 0% 20%;
    --radius: 0.5rem;
}

* {
    border-color: hsl(var(--border));
}

body {
    background-color: hsl(var(--background));
    color: hsl(var(--foreground));
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.card {
    background-color: hsl(var(--card));
    color: hsl(var(--card-foreground));
    border: 1px solid hsl(var(--border));
    border-radius: var(--radius);
}

.link-item {
    transition: all 0.2s ease;
    border-left: 2px solid transparent;
}

.link-item:hover {
    background-color: hsl(var(--secondary));
    border-left-color: hsl(var(--primary));
    transform: translateX(4px);
}

.category-title {
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.link-title {
    color: hsl(var(--foreground));
    font-weight: 500;
}

.link-description {
    color: hsl(var(--muted-foreground));
    font-size: 0.875rem;
}

.external-icon {
    opacity: 0;
    transition: opacity 0.2s ease;
}

.link-item:hover .external-icon {
    opacity: 1;
}

.hero-title {
    background: linear-gradient(135deg, hsl(var(--foreground)) 0%, hsl(var(--muted-foreground)) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}