/* ===========================================
   Phrones Core - Diagram, Module Grid
   =========================================== */

/* Interactive Diagram */
.phrones-diagram {
    padding: 4rem 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.phrones-diagram svg {
    width: 100%;
    height: auto;
}

.phrones-diagram .module-group {
    cursor: pointer;
    transition: opacity var(--transition-base);
}

.phrones-diagram.has-hover .module-group {
    opacity: 0.3;
}

.phrones-diagram.has-hover .module-group.active {
    opacity: 1;
}

.phrones-diagram .flow-line {
    stroke-dasharray: 6 8;
    animation: dashFlow 2s linear infinite;
}

.phrones-diagram .module-group:hover .flow-line,
.phrones-diagram .module-group.active .flow-line {
    stroke-width: 2.5;
}

.phrones-diagram .module-label {
    fill: var(--text-secondary);
    font-size: 12px;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    transition: fill var(--transition-base);
}

.phrones-diagram .module-group:hover .module-label,
.phrones-diagram .module-group.active .module-label {
    fill: var(--text-primary);
}

.phrones-diagram .module-dot {
    transition: r var(--transition-base);
}

.phrones-diagram .module-group:hover .module-dot,
.phrones-diagram .module-group.active .module-dot {
    r: 7;
}

/* Module Grid */
.modules-section {
    padding: var(--section-padding);
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: var(--container-max);
    margin: 0 auto;
}

.module-card {
    padding: 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.module-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.12);
    background: var(--glass-bg-hover);
}

.module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

/* Group colors */
.module-card.group-physical::before { background: var(--phrones-physical); }
.module-card.group-causal::before { background: var(--phrones-causal); }
.module-card.group-social::before { background: var(--phrones-social); }
.module-card.group-meta::before { background: var(--phrones-meta); }

.module-card .module-group-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.group-physical .module-group-tag {
    color: var(--phrones-physical);
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
}

.group-causal .module-group-tag {
    color: var(--phrones-causal);
    background: rgba(167, 139, 250, 0.1);
    border: 1px solid rgba(167, 139, 250, 0.2);
}

.group-social .module-group-tag {
    color: var(--phrones-social);
    background: rgba(251, 146, 60, 0.1);
    border: 1px solid rgba(251, 146, 60, 0.2);
}

.group-meta .module-group-tag {
    color: var(--phrones-meta);
    background: rgba(52, 211, 153, 0.1);
    border: 1px solid rgba(52, 211, 153, 0.2);
}

.module-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.module-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Pipeline section */
.pipeline-section {
    padding: var(--section-padding);
    background: var(--apex-darker);
}

.pipeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    max-width: 1000px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.pipeline-step {
    display: flex;
    align-items: center;
    gap: 0;
}

.pipeline-box {
    padding: 1.25rem 1.75rem;
    background: var(--glass-bg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    text-align: center;
    white-space: nowrap;
    transition: all var(--transition-base);
}

.pipeline-box:hover {
    border-color: var(--apex-primary);
    background: rgba(99, 102, 241, 0.08);
}

.pipeline-box strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.pipeline-box small {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.pipeline-arrow {
    color: var(--text-muted);
    font-size: 1.5rem;
    padding: 0 0.75rem;
}

.pipeline-box.highlight {
    border-color: var(--sentinelle-alert);
    background: rgba(245, 158, 11, 0.08);
}

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

    .pipeline {
        flex-direction: column;
        gap: 0;
    }

    .pipeline-step {
        flex-direction: column;
    }

    .pipeline-arrow {
        transform: rotate(90deg);
        padding: 0.5rem 0;
    }
}