/* ============================================================
   CAPABILITIES.CSS — Capabilities grid, platforms table, engagement cards
   ============================================================ */

/* === ADVANCED CAPABILITIES === */
#capabilities {
    background: var(--bg-dark);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border-dark);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius);
    overflow: hidden;
}

.capability-item {
    background: var(--bg-dark-alt);
    padding: 2rem;
    transition: background var(--transition);
}
.capability-item:hover {
    background: var(--bg-dark-surface);
}

.capability-item h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    line-height: 1.4;
}
.capability-item h4::before {
    content: '';
    display: block;
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
}

.capability-item p {
    font-size: 0.825rem;
    color: var(--text-inverse-muted);
    line-height: 1.65;
}

/* Monospace tag chips */
.capability-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.875rem;
}
.cap-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    padding: 0.2rem 0.55rem;
    background: var(--bg-dark-surface);
    border: 1px solid var(--border-dark);
    border-radius: 3px;
    color: var(--accent);
    white-space: nowrap;
}

/* === HARDWARE PLATFORM TABLE === */
#platforms {
    background: var(--bg-alt);
}

.platforms-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.platforms-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.platforms-table th {
    background: var(--bg-dark);
    color: var(--text-inverse-muted);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-dark);
}

.platforms-table td {
    padding: 1.1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    line-height: 1.6;
    vertical-align: top;
}
.platforms-table tr:last-child td { border-bottom: none; }
.platforms-table tr:hover td { background: var(--bg); }

.platform-name {
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    display: block;
    margin-bottom: 0.1rem;
}

/* Architecture badges */
.platform-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    text-transform: uppercase;
}
.badge-x86  { background: #dbeafe; color: #1d4ed8; }
.badge-arm  { background: #d1fae5; color: #065f46; }
.badge-gpu  { background: #fce7f3; color: #9d174d; }
.badge-edge { background: #fef9c3; color: #854d0e; }

/* === ENGAGEMENT MODEL === */
#engagement {
    background: var(--bg);
}

.engagement-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.engagement-card {
    padding: 2.5rem 2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    position: relative;
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
}
.engagement-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.engagement-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--accent);
}

.engagement-icon {
    width: 48px; height: 48px;
    background: var(--accent-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.engagement-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.engagement-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* === RESPONSIVE — CAPABILITIES / PLATFORMS / ENGAGEMENT === */
@media (max-width: 1100px) {
    .engagement-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .capabilities-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .capabilities-grid { grid-template-columns: 1fr; }
    .engagement-grid   { grid-template-columns: 1fr; }
    .platforms-table   { font-size: 0.8rem; }
    .platforms-table th,
    .platforms-table td { padding: 0.875rem 1rem; }
}