/* ==============================================
   AEROFIELD — PILLAR CARDS
   Dharma, Karma, Yajna, Yugas protocol cards +
   Blackbox Protocol banner.
   ============================================== */

/* --- Grid --- */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

/* --- Card base --- */
.pillar-card {
    position: relative;
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    transition: all var(--ease-spring);
    overflow: hidden;
}

.pillar-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    opacity: 0;
    transition: opacity var(--ease-default);
}

.pillar-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow);
}

.pillar-card:hover::before {
    opacity: 1;
}

/* --- Card variants (accent bars) --- */
.pillar-card--dharma::before { background: linear-gradient(90deg, var(--glow-amber), var(--glow-copper)); }
.pillar-card--karma::before  { background: linear-gradient(90deg, var(--glow-teal), var(--glow-sky)); }
.pillar-card--yajna::before  { background: linear-gradient(90deg, var(--glow-violet), var(--glow-indigo)); }
.pillar-card--yugas::before  { background: linear-gradient(90deg, var(--glow-rose), var(--glow-copper)); }

/* --- Card variants (hover glow) --- */
.pillar-card--dharma:hover { box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 40px rgba(212,160,74,0.08); }
.pillar-card--karma:hover  { box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 40px rgba(45,212,168,0.08); }
.pillar-card--yajna:hover  { box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 40px rgba(139,92,246,0.08); }
.pillar-card--yugas:hover  { box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 40px rgba(244,63,94,0.08); }

/* --- Icon containers --- */
.pillar-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.pillar-icon svg {
    width: 24px;
    height: 24px;
}

.pillar-card--dharma .pillar-icon { background: rgba(212, 160, 74, 0.1); }
.pillar-card--karma  .pillar-icon { background: rgba(45, 212, 168, 0.1); }
.pillar-card--yajna  .pillar-icon { background: rgba(139, 92, 246, 0.1); }
.pillar-card--yugas  .pillar-icon { background: rgba(244, 63, 94, 0.1); }

/* --- Text --- */
.pillar-category {
    font-family: var(--font-ui);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.pillar-name {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.pillar-card--dharma .pillar-name { color: var(--glow-amber); }
.pillar-card--karma  .pillar-name { color: var(--glow-teal); }
.pillar-card--yajna  .pillar-name { color: var(--glow-violet); }
.pillar-card--yugas  .pillar-name { color: var(--glow-rose); }

.pillar-function {
    font-family: var(--font-ui);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.pillar-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ==============================================
   BLACKBOX PROTOCOL BANNER
   ============================================== */

.protocol-banner {
    margin: var(--space-xl) 0 80px;
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(99, 102, 241, 0.15);
    background: linear-gradient(135deg, rgba(99,102,241,0.04) 0%, rgba(139,92,246,0.04) 100%);
    position: relative;
    overflow: hidden;
}

.protocol-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glow-indigo), transparent);
}

.protocol-label {
    font-family: var(--font-ui);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--glow-indigo);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.protocol-label-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--glow-indigo);
    box-shadow: 0 0 12px var(--glow-indigo);
    animation: dotPulse 3s ease-in-out infinite;
}

.protocol-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.protocol-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 800px;
}