/* --- VantageCore Labs: System Identity --- */
:root {
    --bg-dark: #0a0c0e;      /* Deep obsidian */
    --bg-accent: #161a1d;    /* Charcoal secondary */
    --accent-primary: #8e959b; /* Industrial Steel */
    --accent-hover: #007aff;  /* Action Blue (Subtle) */
    --text-main: #e0e0e0;    /* High-contrast off-white */
    --text-dim: #94a3b8;     /* Muted slate for taglines */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
}

/* --- Ambient Background --- */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 10% 20%, #161a1d 0%, #0a0c0e 100%);
    z-index: -1;
}

/* --- Layout Container --- */
.container {
    width: 100%;
    max-width: 1000px;
    padding: 4rem 2rem;
    text-align: center;
}

/* --- Typography --- */
header {
    margin-bottom: 4rem;
}

.logo {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 5px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.logo span {
    color: var(--accent-primary);
    font-weight: 300;
}

.tagline {
    font-size: 1rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    max-width: 600px;
    margin: 0 auto;
}

/* --- Service Grid --- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 2.5rem 1.5rem;
    transition: var(--transition);
    text-align: left;
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.05);
}

.icon {
    font-size: 2rem;
    margin-bottom: 1.2rem;
    display: block;
    filter: saturate(0); /* Keeps icons professional/grayscale */
}

.card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}

.card p {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* --- Methodology Section --- */
.methodology {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);Vantage Core Logic
    padding: 3rem 2rem;
    margin: 4rem 0;
    border-radius: 4px;
}

.methodology h2 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.methodology p {
    max-width: 750px;
    margin: 0 auto;
    font-size: 1.05rem;
    color: var(--text-main);
    opacity: 0.9;
}

/* --- Call to Action --- */
.cta-section {
    padding: 2rem;
}

.cta-section p {
    font-size: 0.9rem;
    margin-bottom: 2rem;
    color: var(--text-dim);
    font-style: italic;
}

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border: 1px solid var(--accent-primary);
    color: var(--text-main);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 4px;
    transition: var(--transition);
}

.btn:hover {
    background: var(--text-main);
    color: var(--bg-dark);
    border-color: var(--text-main);
    cursor: pointer;
}

/* --- Footer --- */
footer {
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 1px;
}

/* --- Mobile Adjustments --- */
@media (max-width: 600px) {
    .container {
        padding: 2rem 1.5rem;
    }
    
    .logo {
        font-size: 1.6rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }

    .sub-branding {
    margin: 1rem 0 2rem 0;
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pill {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-primary);
}
    
    .methodology p {
        font-size: 0.95rem;
    }
}