/* ============================================
   WITNX Product Pages - TRACE & PACE
   ============================================ */

/* Page-specific accents */
.trace-page {
    --page-accent: #00d4ff;
    --page-accent-muted: rgba(0, 212, 255, 0.1);
}

.pace-page {
    --page-accent: #6366f1;
    --page-accent-muted: rgba(99, 102, 241, 0.1);
}

/* Nav active state */
.nav-links a.active {
    color: var(--page-accent) !important;
}

.nav-logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

/* ============================================
   Product Hero
   ============================================ */

.product-hero {
    min-height: 80vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 80px;
    padding: 160px clamp(24px, 5vw, 48px) 100px;
    max-width: 1400px;
    margin: 0 auto;
}

.product-hero-content {
    position: relative;
    z-index: 10;
}

.product-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--page-accent);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--page-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 32px;
}

.product-hero h1 {
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 600;
    letter-spacing: -0.04em;
    color: var(--page-accent);
    margin-bottom: 16px;
    line-height: 0.9;
}

.product-tagline {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-weight: 300;
}

.product-lead {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 500px;
}

.product-lead em {
    color: var(--page-accent);
    font-style: normal;
}

.product-lead strong {
    color: var(--text-primary);
}

.product-hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-hero-visual img {
    max-width: 100%;
    height: auto;
    max-height: 400px;
}

/* ============================================
   Value Section
   ============================================ */

.value-section {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.value-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.value-header h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 500;
    margin-bottom: 16px;
}

.value-header p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border-subtle);
}

.value-card {
    background: var(--bg-card);
    padding: 40px 28px;
    transition: all 0.3s ease;
}

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

.value-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 24px;
}

.value-icon img {
    width: 100%;
    height: 100%;
}

.value-card h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 12px;
}

.value-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.value-card p em {
    color: var(--text-primary);
    font-style: normal;
}

/* ============================================
   Architecture Section
   ============================================ */

.architecture-section {
    padding: var(--section-padding) 0;
}

.arch-header {
    text-align: center;
    margin-bottom: 60px;
}

.arch-header h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 500;
}

.arch-flow {
    max-width: 600px;
    margin: 0 auto;
}

.arch-layer {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    padding: 24px 32px;
    text-align: center;
}

.arch-layer.trace-layer {
    border-color: var(--page-accent);
    background: var(--page-accent-muted);
}

.layer-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

.trace-layer .layer-label {
    color: var(--page-accent);
}

.layer-content {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.layer-content span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.03);
}

.authority-content span {
    background: rgba(0, 212, 255, 0.1);
    color: var(--text-primary);
}

.arch-arrow {
    text-align: center;
    padding: 12px 0;
    color: var(--text-tertiary);
    font-size: 1.25rem;
}

.arch-arrow.highlight {
    color: var(--page-accent);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1em;
}

/* ============================================
   Integration Section
   ============================================ */

.integration-section {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.integration-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.integration-header h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 500;
    margin-bottom: 16px;
}

.integration-header p {
    color: var(--text-secondary);
}

.integration-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--border-subtle);
}

.integration-card {
    background: var(--bg-card);
    padding: 36px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

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

.int-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
}

.int-icon img {
    width: 100%;
    height: 100%;
}

.integration-card h3 {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.integration-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   Business Section
   ============================================ */

.business-section {
    padding: var(--section-padding) 0;
}

.business-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.business-text h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 500;
    margin-bottom: 20px;
}

.business-lead {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.business-points {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.biz-point {
    display: flex;
    gap: 20px;
}

.biz-marker {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--page-accent);
    opacity: 0.7;
    padding-top: 4px;
}

.biz-point h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.biz-point p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.business-visual {
    display: flex;
    justify-content: center;
}

.business-visual img {
    max-width: 100%;
    max-height: 350px;
}

/* ============================================
   Specs Section
   ============================================ */

.specs-section {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.specs-header {
    text-align: center;
    margin-bottom: 60px;
}

.specs-header h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 500;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border-subtle);
    max-width: 900px;
    margin: 0 auto;
}

.spec-item {
    background: var(--bg-card);
    padding: 32px 24px;
    text-align: center;
}

.spec-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

.spec-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--page-accent);
    margin-bottom: 8px;
}

.spec-note {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ============================================
   Product CTA
   ============================================ */

.product-cta {
    padding: var(--section-padding) 0;
}

.product-cta .cta-content {
    text-align: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    padding: 60px;
}

.product-cta h2 {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 500;
    margin-bottom: 16px;
}

.product-cta p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-pace {
    background: var(--accent-secondary) !important;
}

.btn-pace:hover {
    background: #7c7ff7 !important;
}

/* ============================================
   PACE-specific Architecture
   ============================================ */

.pace-arch-diagram {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    padding: 48px;
}

.pace-flow-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 40px;
}

.pace-node {
    padding: 24px 28px;
    border: 1px solid var(--border-subtle);
    text-align: center;
    min-width: 160px;
}

.pace-node.authority-node {
    border-color: var(--accent-secondary);
    background: rgba(99, 102, 241, 0.05);
}

.pace-node.output-node {
    border-color: var(--accent-primary);
    background: rgba(0, 212, 255, 0.05);
}

.node-title {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 6px;
}

.node-detail {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.authority-functions {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.authority-functions span {
    font-size: 0.7rem;
    padding: 4px 8px;
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-secondary);
}

.pace-arrow {
    color: var(--text-tertiary);
    font-size: 1.5rem;
}

.pace-connections {
    position: relative;
    height: 40px;
    margin-bottom: 24px;
}

.connection-line {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--border-subtle), var(--accent-secondary), var(--border-subtle));
}

.pace-verifiers {
    text-align: center;
}

.verifier-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-bottom: 20px;
}

.verifier-row {
    display: flex;
    justify-content: center;
    gap: 32px;
}

.verifier-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.verifier-item img {
    width: 40px;
    height: 40px;
    opacity: 0.8;
}

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

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 1024px) {
    .product-hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 48px;
    }
    
    .product-lead {
        margin: 0 auto;
    }
    
    .product-hero-visual {
        order: -1;
    }
    
    .value-grid,
    .integration-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .business-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .business-visual {
        order: -1;
    }
    
    .pace-flow-row {
        flex-direction: column;
        gap: 16px;
    }
    
    .pace-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .value-grid,
    .integration-grid,
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .verifier-row {
        flex-wrap: wrap;
        gap: 24px;
    }
}