/* The Operator Theme: Structural, Minimal, Industrial */

:root {
    --bg-color: #f4f4f5;
    /* Cement / Off-white */
    --text-primary: #18181b;
    /* Charcoal */
    --text-secondary: #71717a;
    /* Medium Grey */
    --accent: #f97316;
    /* International Orange (Subtle usage) */
    --border-color: #d4d4d8;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --spacing-unit: 24px;
    --max-width: 800px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    font-size: 16px;
}

/* Layout */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 40px 24px;
}

/* Header */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 120px;
    padding-top: 20px;
}

/* Logo Avatar */
.logo-link {
    display: block;
    line-height: 0;
}

.logo-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    filter: grayscale(100%);
    /* Optional: fits the industrial theme */
    transition: filter 0.3s ease;
}

.logo-avatar:hover {
    filter: grayscale(0%);
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.nav-link:hover {
    opacity: 1;
}

/* Hero */
.hero-section {
    margin-bottom: 100px;
}

.hero-statement {
    font-size: 2.5rem;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 24px;
    max-width: 90%;
}

.hero-sub {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
}

.text-muted {
    opacity: 0.7;
}

/* Structural Elements */
.divider {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 60px 0;
}

/* Content Sections */
.content-section {
    display: grid;
    grid-template-columns: 1fr 2.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.section-label {
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-secondary);
    padding-top: 6px;
    /* Visual alignment with body text */
}

.section-body p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.section-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Grid Layout for Scope */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.scope-item p {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Principles List */
.principles-list {
    list-style: none;
}

.principles-list li {
    margin-bottom: 24px;
    padding-left: 20px;
    border-left: 2px solid var(--border-color);
}

.principles-list strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 4px;
}

/* Footer */
.site-footer {
    margin-top: 120px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.footer-contact p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.email-link {
    font-size: 1.1rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.email-link:hover {
    border-color: var(--text-primary);
}

.copyright {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .content-section {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .section-label {
        font-size: 0.7rem;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 8px;
        margin-bottom: 16px;
        display: inline-block;
    }

    .hero-statement {
        font-size: 2rem;
    }

    .grid-2 {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .site-header {
        margin-bottom: 60px;
    }

    .hero-section {
        margin-bottom: 60px;
    }

    .site-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 30px;
    }
}