/* Enhanced terminal-themed landing page with business focus */
body {
    background: var(--dt-bg-primary);
    color: var(--dt-text-primary);
    font-family: var(--dt-font-mono);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Language switcher */
.dt-language-switcher {
    position: fixed;
    top: var(--dt-spacing-md);
    right: var(--dt-spacing-md);
    display: flex;
    gap: var(--dt-spacing-xs);
    z-index: 1000;
}

.dt-lang-link {
    background: var(--dt-bg-secondary);
    border: 1px solid var(--dt-border);
    color: var(--dt-text-secondary);
    text-decoration: none;
    padding: var(--dt-spacing-xs) var(--dt-spacing-sm);
    border-radius: var(--dt-border-radius-sm);
    font-family: var(--dt-font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--dt-transition);
}

.dt-lang-link:hover {
    border-color: var(--dt-text-bright);
    color: var(--dt-text-bright);
    text-decoration: none;
}

.dt-lang-link.active {
    background: var(--dt-bg-tertiary);
    border-color: var(--dt-text-bright);
    color: var(--dt-text-bright);
}

/* Performance metrics */
.dt-power-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--dt-spacing-lg);
    margin: var(--dt-spacing-xl) 0;
    max-width: 600px;
    width: 100%;
}

.metric {
    background: var(--dt-bg-secondary);
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-border-radius-sm);
    padding: var(--dt-spacing-md);
    text-align: center;
    transition: var(--dt-transition);
}

.metric:hover {
    border-color: var(--dt-text-bright);
    background: var(--dt-bg-tertiary);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

.metric .number {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dt-text-bright);
    margin-bottom: var(--dt-spacing-xs);
    font-family: var(--dt-font-mono);
}

.metric .label {
    display: block;
    font-size: 0.75rem;
    color: var(--dt-text-secondary);
    font-family: var(--dt-font-mono);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Performance explanations */
.dt-performance-explanations {
    margin: var(--dt-spacing-xl) 0;
    max-width: 900px;
    width: 100%;
}

.dt-explanation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--dt-spacing-lg);
}

.dt-explanation {
    background: var(--dt-bg-secondary);
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-border-radius-sm);
    padding: var(--dt-spacing-md);
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--dt-text-secondary);
    font-family: var(--dt-font-mono);
    text-align: left;
}

.dt-explanation strong {
    color: var(--dt-text-bright);
    font-weight: 600;
}

.dt-explanation:hover {
    border-color: var(--dt-text-bright);
    background: var(--dt-bg-tertiary);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

/* Comprehensive explanations after services */
.dt-comprehensive-explanations {
    margin: var(--dt-spacing-xl) 0;
    max-width: 1000px;
    width: 100%;
}

.dt-explanation-paragraphs {
    display: flex;
    flex-direction: column;
    gap: var(--dt-spacing-lg);
}

.dt-explanation-paragraph {
    background: var(--dt-bg-secondary);
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-border-radius-sm);
    padding: var(--dt-spacing-lg);
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--dt-text-muted);
    font-family: var(--dt-font-mono);
    text-align: left;
}

.dt-explanation-paragraph strong {
    color: var(--dt-text-bright);
    font-weight: 600;
}

.dt-explanation-paragraph:hover {
    border-color: var(--dt-text-bright);
    background: var(--dt-bg-tertiary);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

@media (max-width: 768px) {
    .dt-explanation-grid {
        grid-template-columns: 1fr;
        gap: var(--dt-spacing-md);
    }
    
    .dt-explanation {
        font-size: 0.8rem;
        padding: var(--dt-spacing-sm);
    }
    
    .dt-explanation-paragraph {
        font-size: 0.85rem;
        padding: var(--dt-spacing-md);
    }
}

.dt-landing-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--dt-spacing-xl);
    background: var(--dt-bg-primary);
}

.dt-landing-title {
    font-size: 3.5rem;
    font-weight: 500;
    color: var(--dt-text-bright);
    margin-bottom: var(--dt-spacing-md);
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
    font-family: var(--dt-font-mono);
    letter-spacing: -0.5px;
}

.dt-landing-tagline {
    font-size: 1.2rem;
    color: var(--dt-warning);
    margin-bottom: var(--dt-spacing-lg);
    font-family: var(--dt-font-mono);
    font-weight: 500;
}

.dt-landing-subtitle {
    font-size: 1rem;
    color: var(--dt-text-secondary);
    margin-bottom: var(--dt-spacing-xl);
    max-width: 700px;
    line-height: 1.6;
    font-family: var(--dt-font-mono);
}

.dt-business-highlights {
    display: flex;
    justify-content: center;
    gap: var(--dt-spacing-lg);
    margin-bottom: var(--dt-spacing-xl);
    flex-wrap: wrap;
}

.dt-highlight {
    background: var(--dt-bg-secondary);
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-border-radius-sm);
    padding: var(--dt-spacing-sm) var(--dt-spacing-md);
    font-size: 0.85rem;
    color: var(--dt-text-bright);
    font-family: var(--dt-font-mono);
}

.dt-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--dt-spacing-lg);
    max-width: 1000px;
    width: 100%;
    margin-top: var(--dt-spacing-xl);
}

.dt-service-card {
    background: var(--dt-bg-secondary);
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-border-radius-sm);
    padding: var(--dt-spacing-lg);
    text-decoration: none;
    color: var(--dt-text-primary);
    transition: var(--dt-transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    min-height: 200px;
}

.dt-service-card:hover {
    border-color: var(--dt-text-bright);
    background: var(--dt-bg-tertiary);
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.2);
    text-decoration: none;
    color: var(--dt-text-primary);
}

.dt-service-icon {
    font-size: 2.5rem;
    margin-bottom: var(--dt-spacing-md);
    color: var(--dt-text-bright);
}

.dt-service-description {
    font-size: 0.85rem;
    color: var(--dt-text-secondary);
    line-height: 1.4;
    font-family: var(--dt-font-mono);
    margin-bottom: var(--dt-spacing-md);
    flex-grow: 1;
}

.dt-service-title {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: var(--dt-spacing-sm);
    color: var(--dt-text-bright);
    font-family: var(--dt-font-mono);
}

.dt-service-features {
    font-size: 0.75rem;
    color: var(--dt-text-muted);
    margin-top: var(--dt-spacing-sm);
    font-family: var(--dt-font-mono);
}

.dt-service-badge {
    position: absolute;
    top: var(--dt-spacing-sm);
    right: var(--dt-spacing-sm);
    background: var(--dt-bg-tertiary);
    border: 1px solid var(--dt-border);
    color: var(--dt-text-secondary);
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: var(--dt-border-radius-sm);
    font-family: var(--dt-font-mono);
    font-weight: 500;
}

.dt-service-badge.free {
    color: var(--dt-success);
    border-color: var(--dt-success);
}

.dt-service-badge.premium {
    color: var(--dt-warning);
    border-color: var(--dt-warning);
}

.dt-service-badge.api {
    color: var(--dt-info);
    border-color: var(--dt-info);
}

.dt-service-badge.knowledge {
    color: #9d4edd;
    border-color: #9d4edd;
}

.dt-service-badge.hardware {
    color: #f72585;
    border-color: #f72585;
}

.dt-footer {
    position: fixed;
    bottom: var(--dt-spacing-md);
    right: var(--dt-spacing-md);
    font-size: 0.75rem;
    color: var(--dt-text-muted);
    font-family: var(--dt-font-mono);
}

.dt-tech-stack {
    margin-top: var(--dt-spacing-xl);
    padding-top: var(--dt-spacing-lg);
    border-top: 1px solid var(--dt-border);
    max-width: 800px;
}

.dt-tech-title {
    font-size: 0.9rem;
    color: var(--dt-text-secondary);
    margin-bottom: var(--dt-spacing-md);
    font-family: var(--dt-font-mono);
}

.dt-tech-items {
    display: flex;
    justify-content: center;
    gap: var(--dt-spacing-md);
    flex-wrap: wrap;
}

.dt-tech-item {
    background: var(--dt-bg-secondary);
    border: 1px solid var(--dt-border);
    border-radius: var(--dt-border-radius-sm);
    padding: var(--dt-spacing-xs) var(--dt-spacing-sm);
    font-size: 0.75rem;
    color: var(--dt-text-muted);
    font-family: var(--dt-font-mono);
}

@media (max-width: 768px) {
    .dt-landing-title {
        font-size: 2.5rem;
    }
    
    .dt-landing-tagline {
        font-size: 1rem;
    }
    
    .dt-landing-subtitle {
        font-size: 0.9rem;
    }
    
    .dt-services-grid {
        grid-template-columns: 1fr;
        gap: var(--dt-spacing-md);
        max-width: 400px;
    }
    
    .dt-landing-container {
        padding: var(--dt-spacing-lg);
    }
    
    .dt-business-highlights {
        flex-direction: column;
        align-items: center;
    }
}

/* Service action buttons */
.dt-service-actions {
    display: flex;
    gap: var(--dt-spacing-sm);
    margin-top: var(--dt-spacing-md);
    width: 100%;
    justify-content: center;
}

.dt-service-btn {
    padding: var(--dt-spacing-xs) var(--dt-spacing-sm);
    border-radius: var(--dt-border-radius-sm);
    text-decoration: none;
    font-family: var(--dt-font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--dt-transition);
    text-align: center;
    min-width: 60px;
    border: 1px solid;
}

.dt-service-btn.primary {
    background: var(--dt-text-bright);
    color: var(--dt-bg-primary);
    border-color: var(--dt-text-bright);
}

.dt-service-btn.primary:hover {
    background: var(--dt-success);
    border-color: var(--dt-success);
    color: var(--dt-bg-primary);
    text-decoration: none;
    transform: translateY(-1px);
}

.dt-service-btn.secondary {
    background: transparent;
    color: var(--dt-text-secondary);
    border-color: var(--dt-border);
}

.dt-service-btn.secondary:hover {
    background: var(--dt-bg-tertiary);
    color: var(--dt-text-bright);
    border-color: var(--dt-text-bright);
    text-decoration: none;
    transform: translateY(-1px);
}

@media (max-width: 480px) {
    .dt-landing-title {
        font-size: 2rem;
    }
    
    .dt-service-card {
        padding: var(--dt-spacing-md);
        min-height: 180px;
    }
    
    .dt-service-icon {
        font-size: 2rem;
    }
    
    .dt-service-actions {
        flex-direction: column;
        gap: var(--dt-spacing-xs);
    }
    
    .dt-service-btn {
        width: 100%;
    }
}