/* Modern Cybersecurity Theme */
:root {
    --bg-dark: #0f172a;       /* Deep Slate Blue Background */
    --bg-card: #1e293b;       /* Lighter Slate for Cards */
    --primary: #38bdf8;       /* Neon Sky Blue */
    --secondary: #94a3b8;     /* Muted Grey text */
    --text-light: #f8fafc;    /* White-ish text */
    --border: rgba(255, 255, 255, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.7;
}

/* Navbar Customization */
.navbar {
    background-color: rgba(15, 23, 42, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border) !important;
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary) !important;
    letter-spacing: 0.5px;
}

.nav-link {
    color: var(--secondary) !important;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero-section {
    padding: 5rem 0;
    background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.1), transparent 40%);
}

h1, h2, h3, h4 {
    font-weight: 700;
    color: var(--text-light);
}

.text-highlight {
    color: var(--primary);
}

/* Glassmorphism Card Style */
.glass-card {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
    border-radius: 12px;
    padding: 2rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    border: none;
    color: #0f172a;
    font-weight: 600;
    padding: 10px 25px;
}

.btn-primary:hover {
    background-color: #0ea5e9;
    color: #fff;
}

/* Blog Specifics */
.blog-meta {
    color: var(--secondary);
    font-size: 0.9rem;
    display: block;
    margin-bottom: 1rem;
    border-left: 3px solid var(--primary);
    padding-left: 10px;
}

.visual-placeholder {
    background: rgba(0,0,0,0.3);
    border: 2px dashed var(--border);
    color: var(--secondary);
    padding: 3rem;
    text-align: center;
    border-radius: 8px;
    margin: 2rem 0;
}

footer {
    border-top: 1px solid var(--border) !important;
    color: var(--secondary);
    background-color: var(--bg-dark) !important;
}