/* Use-Case Landing-Page Engine — card components (issue 000036) */

/* Hero reuses .wc-hero-gradient / .dl-hero-title from main.css (same
   treatment as the /downloads/ hero) for a consistent look across
   marketing pages. */

.usecase-section {
    padding: 40px 0;
}

.usecase-section h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 24px;
}

/* Core Features — .premium-card */

.core-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}

.premium-card {
    background: #fff;
    border: 1px solid #e6e6e6;
    border-radius: 12px;
    padding: 28px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.premium-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
    border-color: #7aa7ff;
}

.premium-card .core-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2f5fdb;
    margin-bottom: 16px;
}

.premium-card .core-icon svg {
    width: 28px;
    height: 28px;
}

.premium-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.premium-card p {
    font-size: 0.95rem;
    color: #666;
    margin: 0;
}

/* Advanced Features — .advanced-card */

.advanced-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.advanced-card {
    position: relative;
    background: #0f1420;
    border-radius: 12px;
    padding: 24px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.advanced-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.advanced-card .ink-card-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.advanced-card-content {
    position: relative;
    z-index: 1;
}

.advanced-card .advanced-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7aa7ff;
    margin-bottom: 14px;
}

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

.advanced-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 6px;
}

.advanced-card p {
    font-size: 0.875rem;
    color: #b9c0d4;
    margin: 0;
}

/* Reveal-on-scroll (see use_case.js) */

.reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .premium-card,
    .advanced-card {
        transition: none;
    }
}

/* Workflow / mapping / FAQ */

.usecase-mapping-table {
    width: 100%;
    border-collapse: collapse;
}

.usecase-mapping-table th,
.usecase-mapping-table td {
    padding: 10px 14px;
    border: 1px solid #e6e6e6;
    text-align: left;
    font-size: 0.9rem;
}

/* Medium screens */

@media (max-width: 991.98px) {
    .core-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .advanced-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Small / mobile screens */

@media (max-width: 575.98px) {
    .core-grid,
    .advanced-grid {
        grid-template-columns: 1fr;
    }
}