/* Subject Grid Layout */
.subjects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* Subject Cards */
.subject-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-default);
}

.subject-card:hover {
    transform: translateY(-5px);
}

.subject-title {
    font-size: 1.5rem;
    color: var(--dark-purple);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

/* Topic Lists */
.topic-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.topic-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--text-gray);
}

.checkmark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--light-purple);
    border-radius: 50%;
    color: var(--primary-purple);
    font-weight: bold;
    flex-shrink: 0;
}