/* =====================================================
   PRODUCT PAGE SPECIFIC STYLES
   Extends homepage-dark.css design system
   ===================================================== */

/* =========================
   BREADCRUMB
   ========================= */
.dk-breadcrumb {
    padding-top: 80px;
    padding-bottom: var(--space-md);
    background: var(--dk-bg-primary);
    border-bottom: 1px solid var(--dk-border-subtle);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    list-style: none;
    font-size: var(--fs-small);
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.breadcrumb-list li:not(:last-child)::after {
    content: '→';
    color: var(--dk-text-muted);
    font-size: var(--fs-xs);
}

.breadcrumb-list a {
    color: var(--dk-text-muted);
    transition: color var(--transition-fast);
}

.breadcrumb-list a:hover {
    color: var(--dk-accent-primary);
}

.breadcrumb-list li[aria-current="page"] {
    color: var(--dk-text-secondary);
}

/* =========================
   PRODUCT HERO
   ========================= */
.product-hero {
    padding-top: var(--space-3xl);
    min-height: auto;
}

.product-hero .dk-badge-flagship {
    margin-bottom: var(--space-lg);
}

.product-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
}

/* =========================
   PROBLEM SECTION
   ========================= */
.dk-problem {
    background: var(--dk-bg-secondary);
    border-top: 1px solid var(--dk-border-subtle);
    border-bottom: 1px solid var(--dk-border-subtle);
}

.dk-problem-card {
    text-align: center;
    padding: var(--space-2xl);
}

.problem-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.problem-icon svg {
    stroke: #ef4444;
}

.dk-problem-card h3 {
    font-size: var(--fs-body);
    margin-bottom: var(--space-sm);
    color: var(--dk-text-primary);
}

.dk-problem-card p {
    font-size: var(--fs-small);
    color: var(--dk-text-muted);
}

/* =========================
   APPROACH SECTION (Pipeline)
   ========================= */
.dk-approach {
    background: var(--dk-bg-primary);
}

/* Pipeline Strip */
.pipeline-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
    padding: var(--space-xl);
    background: var(--dk-bg-card);
    border: 1px solid var(--dk-border);
    border-radius: var(--radius-xl);
}

.pipeline-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: var(--dk-bg-elevated);
    border: 1px solid var(--dk-border);
    border-radius: var(--radius-lg);
    min-width: 100px;
    transition: all var(--transition-base);
}

.pipeline-step:hover {
    border-color: var(--dk-border-hover);
    transform: translateY(-2px);
}

.pipeline-step.highlight {
    border-color: var(--dk-accent-primary);
    box-shadow: 0 0 20px rgba(255, 102, 0, 0.2);
}

.pipeline-step.highlight .pipeline-icon {
    background: rgba(255, 102, 0, 0.15);
    border-color: rgba(255, 102, 0, 0.3);
}

.pipeline-step.highlight .pipeline-icon svg {
    stroke: var(--dk-accent-primary);
}

.pipeline-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--dk-bg-card);
    border: 1px solid var(--dk-border);
}

.pipeline-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--dk-text-secondary);
}

.pipeline-label {
    font-size: var(--fs-small);
    font-weight: 600;
    color: var(--dk-text-primary);
}

.pipeline-sublabel {
    font-size: var(--fs-xs);
    color: var(--dk-text-muted);
}

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

/* Approach Benefits */
.approach-benefits {
    max-width: 600px;
    margin: 0 auto;
}

.approach-benefits ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.approach-benefits li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--fs-body);
    color: var(--dk-text-secondary);
}

.approach-benefits li svg {
    flex-shrink: 0;
    stroke: var(--dk-accent-success);
}

/* =========================
   GUARDRAILS SECTION
   ========================= */
.dk-guardrails {
    background: var(--dk-bg-secondary);
    border-top: 1px solid var(--dk-border-subtle);
    border-bottom: 1px solid var(--dk-border-subtle);
}

.dk-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.dk-guardrail-card {
    text-align: center;
    padding: var(--space-xl);
}

.guardrail-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.guardrail-icon svg {
    stroke: var(--dk-accent-secondary);
}

.dk-guardrail-card h3 {
    font-size: var(--fs-small);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.dk-guardrail-card p {
    font-size: var(--fs-small);
    color: var(--dk-text-muted);
}

/* =========================
   INTEGRATIONS SECTION
   ========================= */
.dk-integrations {
    background: var(--dk-bg-primary);
}

.integration-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.integration-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--space-xl);
    background: var(--dk-bg-card);
    border: 1px solid var(--dk-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.integration-tile:hover {
    border-color: var(--dk-border-hover);
    transform: translateY(-2px);
}

.integration-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    border-radius: var(--radius-lg);
    background: var(--dk-bg-elevated);
    border: 1px solid var(--dk-border);
}

.integration-icon svg {
    stroke: var(--dk-accent-primary);
}

.integration-name {
    font-size: var(--fs-small);
    font-weight: 600;
    color: var(--dk-text-primary);
    margin-bottom: var(--space-xs);
}

.integration-desc {
    font-size: var(--fs-xs);
    color: var(--dk-text-muted);
}

/* =========================
   AUDIENCE SECTION
   ========================= */
.dk-audience {
    background: var(--dk-bg-secondary);
    border-top: 1px solid var(--dk-border-subtle);
    border-bottom: 1px solid var(--dk-border-subtle);
}

.dk-audience-card {
    text-align: center;
    padding: var(--space-2xl);
}

.audience-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.dk-audience-card h3 {
    font-size: var(--fs-body);
    margin-bottom: var(--space-sm);
}

.dk-audience-card p {
    font-size: var(--fs-small);
    color: var(--dk-text-muted);
}

/* =========================
   CTA SECTION
   ========================= */
.dk-cta-section {
    background: var(--dk-bg-primary);
    text-align: center;
}

.dk-cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.dk-cta-content h2 {
    font-size: var(--fs-h2);
    margin-bottom: var(--space-md);
}

.dk-cta-content > p {
    font-size: var(--fs-body);
    color: var(--dk-text-secondary);
    margin-bottom: var(--space-2xl);
}

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 1024px) {
    .dk-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .integration-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pipeline-strip {
        gap: var(--space-md);
    }
    
    .pipeline-arrow {
        display: none;
    }
    
    .pipeline-step {
        flex: 1 1 calc(33% - var(--space-md));
        min-width: 120px;
    }
}

@media (max-width: 768px) {
    .dk-breadcrumb {
        padding-top: 70px;
    }
    
    .dk-grid-4 {
        grid-template-columns: 1fr;
    }
    
    .integration-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .pipeline-strip {
        flex-direction: column;
        padding: var(--space-lg);
    }
    
    .pipeline-step {
        width: 100%;
        flex-direction: row;
        justify-content: flex-start;
        text-align: left;
        gap: var(--space-lg);
    }
    
    .pipeline-step .pipeline-icon {
        flex-shrink: 0;
    }
    
    .pipeline-label,
    .pipeline-sublabel {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .integration-grid {
        grid-template-columns: 1fr;
    }
}