/* Card grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, 280px);
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.card {
    text-decoration: none;
    color: inherit;
    display: block;
    background: transparent;
    border-radius: 4px;
    padding: 1.5rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.6);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    position: relative;
    isolation: isolate;
}

@media (min-width: 768px) {
    .card:hover {
        transform: translateY(12px);
    }
}

.card img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 0.8rem;
    display: block;
    margin-left: auto;
    margin-right: auto;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.6);
    transition: transform cubic-bezier(0.6, -0.28, 0.735, 0.045);
    position: relative;
    z-index: 2;
}

.card-body {
    position: relative;
    z-index: 2;
}

.card h3 {
    margin-bottom: 0.3rem;
    color: #333;
    font-size: 1rem;
}

.card p {
    color: black;
    font-size: 0.9rem;
}

.card--wide {
    width: 400px;
}

.year-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-weight: 500;
    z-index: 2;
}

/* Card background */
.card-bg {
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    bottom: 8px;
    z-index: -1;
    border-radius: 9px;
    box-shadow: 4px 4px 8px rgba(0, 0, 0, 0.6);
    pointer-events: none;
}

/* Card hover checkmark */
.card-check {
    position: absolute;
    top: 0.8rem;
    left: 0.8rem;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid rgba(0, 0, 0, 0.7);
    background: rgba(255, 255, 255, 0.4);
    z-index: 3;
    pointer-events: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: check-pulse 2s ease-in-out infinite;
}

@keyframes check-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4); }
    50% { transform: scale(1.2); box-shadow: 0 0 10px 3px rgba(255, 255, 255, 0.3); }
}

.card-check.checked {
    background: rgba(255, 215, 0, 0.9);
    border-color: rgba(0, 0, 0, 0.8);
    box-shadow: 0 0 12px 4px rgba(255, 215, 0, 0.5);
    animation: none;
    transform: scale(1.1);
}

/* Card color themes */
.card--cv {
    background: rgba(200, 190, 210, 0.9);
}

.card--linerider-gravity {
    background: rgba(173, 228, 185, 0.9);
}

.card--fish-registry {
    background: rgba(120, 180, 230, 0.9);
}

.card--flowers {
    background: rgba(255, 182, 193, 0.9);
}

.card--webcog {
    background: rgba(173, 216, 230, 0.9);
}

.card--essay {
    background: rgba(255, 255, 224, 0.9);
}

.card--blackbrew {
    background: rgba(211, 211, 211, 0.9);
}

.card--pep {
    background: rgba(144, 238, 144, 0.9);
}

.card--binary {
    background: rgba(255, 218, 185, 0.9);
}