.cards-section { margin-bottom: 2rem; }

.cards-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.85rem;
}

.section-subtitle {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

.btn-toggle-cards {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--muted);
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    transition: all 0.2s var(--ease-out);
}

.btn-toggle-cards:hover { color: var(--ink); border-color: var(--ink-soft); background: var(--bg); }
.btn-toggle-cards i { width: 14px; height: 14px; }

.cards-grid-wrapper {
    display: grid;
    grid-template-rows: 1fr;
    opacity: 1;
    transition: grid-template-rows 0.35s var(--ease-out), opacity 0.25s var(--ease-out);
    padding: 6px;
    margin: -6px;
}

.cards-grid-wrapper.hidden {
    grid-template-rows: 0fr;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
    padding: 0;
    margin: 0;
}

.cards-grid-wrapper .content-grid {
    overflow: visible;
}

.cards-grid-wrapper.hidden .content-grid {
    overflow: hidden;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(240px, 100%), 1fr));
    gap: 1.1rem;
    width: 100%;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.35rem 1.2rem;
    min-height: 160px;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
    will-change: transform, box-shadow;
    box-sizing: border-box;
    min-width: 0;
    transition: border-color 0.3s var(--ease-out), transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

@media (max-width: 640px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 0.85rem;
    }
    .card {
        padding: 1.15rem 1rem;
        min-height: auto;
    }
}

.card:hover { 
    border-color: rgba(42, 70, 255, 0.4); 
    transform: translateY(-3px); 
    box-shadow: 0 12px 28px -10px rgba(42, 70, 255, 0.12);
}

.card:active { transform: scale(0.985); }

.card::before, .card::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    border-color: var(--accent);
    opacity: 0;
    transition: opacity 0.25s var(--ease-out);
}
.card::before { top: -1px; left: -1px; border-top: 1.5px solid; border-left: 1.5px solid; }
.card::after { bottom: -1px; right: -1px; border-bottom: 1.5px solid; border-right: 1.5px solid; }
.card:hover::before, .card:hover::after { opacity: 1; }

.card-enter {
    opacity: 0;
    transform: translateY(12px);
    animation: card-appear 0.45s var(--ease-out) forwards;
}

@keyframes card-appear { to { opacity: 1; transform: translateY(0); } }

.card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.15rem; }
.card-top-right { display: flex; align-items: center; gap: 8px; }

.card-tag {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 500;
    color: var(--ink-soft);
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 2px 7px;
    border-radius: var(--radius-sm);
}

.card-icon {
    width: 36px;
    height: 36px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ink);
    transition: background-color 0.25s var(--ease-out), color 0.25s var(--ease-out);
}
.card-icon i { width: 18px; height: 18px; stroke-width: 1.6; }
.card:hover .card-icon { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

.card-arrow {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    opacity: 0.5;
    transition: all 0.25s var(--ease-out);
}
.card-arrow i { width: 16px; height: 16px; stroke-width: 1.6; }
.card:hover .card-arrow { opacity: 1; transform: translate(2px, -2px); color: var(--accent); }

.card-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.35rem;
}

.card-title { font-size: 1rem; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 0.35rem; }
.card-desc { color: var(--ink-soft); font-size: 0.84rem; line-height: 1.45; margin-top: auto; }

.skeleton {
    background: linear-gradient(90deg, #EFEFF4 25%, #F7F7FA 50%, #EFEFF4 75%);
    background-size: 200% 100%;
    animation: skeleton-pulse 1.3s infinite;
    border-color: transparent;
}

@keyframes skeleton-pulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}