:root {
    --bg-dark: #121214;
    --primary-green: #00E676;
    --warning-yellow: #FFEA00;
    --cold-blue: #00E5FF;
    --text-light: #E0E0E0;
    --text-muted: #888888;
    --font-tech: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: var(--font-tech);
    overflow-x: hidden;
}

.navbar {
    background-color: rgba(18, 18, 20, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--primary-green) !important;
}

.nav-link {
    color: var(--text-light) !important;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-green) !important;
}

.tech-border {
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.tech-border::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    width: 10px;
    height: 10px;
    border-top: 2px solid var(--primary-green);
    border-left: 2px solid var(--primary-green);
}

.tech-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 20px;
    transition: all 0.3s ease;
}

.tech-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-green);
}

.glow-text-green { text-shadow: 0 0 10px var(--primary-green); color: var(--primary-green); }
.glow-text-yellow { text-shadow: 0 0 10px var(--warning-yellow); color: var(--warning-yellow); }
.glow-text-blue { text-shadow: 0 0 10px var(--cold-blue); color: var(--cold-blue); }

.mono-data {
    font-family: var(--font-mono);
}

footer {
    background: #0a0a0b;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px 0;
    margin-top: 60px;
}

.btn-flex {
    background: transparent;
    border: 1px solid var(--primary-green);
    color: var(--primary-green);
    padding: 10px 25px;
    text-transform: uppercase;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn-flex:hover {
    background: var(--primary-green);
    color: var(--bg-dark);
    box-shadow: 0 0 20px var(--primary-green);
}