/* ========================================
   04 — THE DIGITAL BACKBONE (PLATFORM)
   ======================================== */

.platform-section {
    background: var(--bg-darkest);
}

.sw-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 48px;
}

.sw-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: 20px;
}

.sw-text p strong {
    color: var(--text-primary);
}

.sw-badges {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.sw-badge {
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.sw-badge:hover {
    background: var(--bg-card-hover);
}

.sw-badge h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.sw-badge p {
    color: var(--text-muted);
    font-size: 0.8rem;
    line-height: 1.5;
}

/* ---------- Architecture Diagram ---------- */
.arch-block {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-top: 3px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: 40px;
    margin-bottom: 40px;
}

.arch-title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    letter-spacing: 0.15em;
    margin-bottom: 28px;
}

.arch-layers {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 720px;
    margin: 0 auto;
}

.arch-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    min-height: 44px;
}

.arch-label {
    background: rgba(255, 255, 255, 0.04);
    padding: 12px 16px;
    font-size: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.arch-content {
    background: rgba(255, 255, 255, 0.02);
    padding: 12px 16px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.arch-chip {
    font-size: 0.72rem;
    color: var(--text-primary);
    padding: 4px 12px;
    background: var(--primary-glow-soft);
    border: 1px solid rgba(245, 5, 55, 0.2);
    border-radius: var(--radius-sm);
}

/* ---------- Sovereignty Card ---------- */
.sovereignty-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-md);
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.sovereignty-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
    font-weight: bold;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
}

.sovereignty-card h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.sovereignty-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .sw-grid {
        grid-template-columns: 1fr;
    }

    .sw-badges {
        grid-template-columns: 1fr 1fr;
    }

    .arch-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sw-badges {
        grid-template-columns: 1fr;
    }

    .sovereignty-card {
        flex-direction: column;
    }
}